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1
00:00:01,702 --> 00:00:04,504
What is cute to us
is dinner to others.
2
00:00:08,141 --> 00:00:11,211
Calves like these have to learn
to run and walk quickly
3
00:00:11,211 --> 00:00:13,080
to escape scary predators.
4
00:00:15,749 --> 00:00:18,852
In the wild the giraffe,
the pronghorn, the zebra,
5
00:00:18,852 --> 00:00:22,756
and the muskox
need to learn fast or die young.
6
00:00:27,828 --> 00:00:37,838
(♪♪♪)
7
00:00:37,838 --> 00:00:41,041
(Birds chirping)
8
00:00:43,143 --> 00:00:45,812
This is Lester.
9
00:00:45,812 --> 00:00:50,350
Lester was 117 pounds
at birth,
10
00:00:50,350 --> 00:00:52,452
but just wait
until he grows up.
11
00:00:52,452 --> 00:00:56,823
At just 1 year old he used to be
the baby around here,
12
00:00:56,823 --> 00:00:59,526
but lately,
competition is fierce.
13
00:01:01,128 --> 00:01:03,330
Three months ago,
this male showed up.
14
00:01:05,132 --> 00:01:08,168
And then a month ago
this unnamed female showed up.
15
00:01:09,536 --> 00:01:12,506
She was a whopping 192 pounds
at birth.
16
00:01:13,640 --> 00:01:16,176
The biggest baby
this zoo has ever seen.
17
00:01:18,145 --> 00:01:20,180
But Lester doesn't seem to mind.
18
00:01:22,816 --> 00:01:24,184
And all three of our calves,
19
00:01:24,184 --> 00:01:26,086
they hang pretty closely
together.
20
00:01:27,921 --> 00:01:29,790
They love to play,
21
00:01:29,790 --> 00:01:31,892
they'll chew
on each other's ears,
22
00:01:31,892 --> 00:01:33,393
chew on each other's hair
23
00:01:33,393 --> 00:01:35,128
just to hang out
and have a good time.
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00:01:36,663 --> 00:01:38,899
All three calves were born
to different mothers,
25
00:01:38,899 --> 00:01:43,637
but they all have the same dad,
Duke.
26
00:01:43,637 --> 00:01:50,744
(♪♪♪)
27
00:01:50,744 --> 00:01:53,413
Duke is our adult male
28
00:01:53,413 --> 00:01:57,217
and he has fathered 14 calves
here at the zoo.
29
00:01:57,217 --> 00:01:58,919
Duke is a little distant,
30
00:01:58,919 --> 00:02:01,922
he does his own thing usually
when he's out on exhibit.
31
00:02:01,922 --> 00:02:05,192
But he likes our female keepers
the most,
32
00:02:05,192 --> 00:02:06,593
his favorite food is bananas.
33
00:02:06,593 --> 00:02:07,961
We give him a banana
every morning
34
00:02:07,961 --> 00:02:10,163
when he shifts on to
and off of exhibit.
35
00:02:12,866 --> 00:02:14,968
And he can be very stubborn
at times,
36
00:02:14,968 --> 00:02:17,838
he likes to stay close
to our adult females,
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00:02:17,838 --> 00:02:20,974
if they're not going out yet
he likes to kind of hang back
38
00:02:20,974 --> 00:02:23,210
until
they're out on exhibit also.
39
00:02:24,711 --> 00:02:27,848
All of Dukes calves
have hit the ground running,
40
00:02:27,848 --> 00:02:28,815
literally.
41
00:02:28,815 --> 00:02:29,683
When they're born,
42
00:02:29,683 --> 00:02:31,685
they have a 6 foot fall
to the ground.
43
00:02:34,221 --> 00:02:36,823
And within an hour
they're running around
44
00:02:36,823 --> 00:02:38,625
that's to help them survive.
45
00:02:39,893 --> 00:02:40,761
In the wild
46
00:02:40,761 --> 00:02:43,230
babies are prime targets
for predators,
47
00:02:43,230 --> 00:02:44,898
so they don't have time
to waste.
48
00:02:48,235 --> 00:02:50,937
Giraffe females even synchronize
their breeding cycles,
49
00:02:50,937 --> 00:02:52,639
so they all give birth at once.
50
00:02:54,608 --> 00:02:55,675
Safety in numbers.
51
00:02:57,611 --> 00:03:00,013
Lester was born in captivity,
but that doesn't mean
52
00:03:00,013 --> 00:03:02,983
he necessarily had
an easy start.
53
00:03:02,983 --> 00:03:05,018
His mother died
only three months
54
00:03:05,018 --> 00:03:06,620
after he was born.
55
00:03:09,389 --> 00:03:11,958
Within the first couple of
days he was sad.
56
00:03:14,561 --> 00:03:16,797
He made noise,
he went out on exhibit
57
00:03:16,797 --> 00:03:17,931
and when she wasn't there,
58
00:03:17,931 --> 00:03:19,699
he was making noise
looking for her.
59
00:03:21,568 --> 00:03:22,869
In the wild, a dead mother
60
00:03:22,869 --> 00:03:24,805
would surely be the end
of Lester
61
00:03:24,805 --> 00:03:26,840
since male giraffes
usually don't take part
62
00:03:26,840 --> 00:03:28,575
in the parenting process.
63
00:03:32,379 --> 00:03:33,246
But thankfully,
64
00:03:33,246 --> 00:03:36,316
zookeepers stepped in
and took over.
65
00:03:36,316 --> 00:03:38,952
Lester was still nursing
when his mother died,
66
00:03:38,952 --> 00:03:40,987
so they had to find
a different source of milk
67
00:03:40,987 --> 00:03:42,556
to keep him fed.
68
00:03:43,690 --> 00:03:46,493
When Lester's mom passed
away,
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00:03:46,493 --> 00:03:49,763
they obviously had to make
some kind of supplement for him,
70
00:03:49,763 --> 00:03:52,432
because he wasn't eating
the grain and the brows
71
00:03:52,432 --> 00:03:53,967
the way our adult giraffes were,
72
00:03:53,967 --> 00:03:55,068
so we tried
a couple different kinds
73
00:03:55,068 --> 00:03:59,005
of grain, and milk,
and milk replacement pellets.
74
00:03:59,005 --> 00:04:01,575
It definitely requires
a different level of care,
75
00:04:01,575 --> 00:04:02,976
a more intense level of care.
76
00:04:02,976 --> 00:04:03,910
But even through hardship,
77
00:04:03,910 --> 00:04:06,480
Lester has maintained
a great attitude.
78
00:04:07,948 --> 00:04:11,651
Lester has definitely
a very unique personality,
79
00:04:11,651 --> 00:04:15,622
his mom was
a wonderful calm giraffe.
80
00:04:15,622 --> 00:04:17,991
So when his mom passed away
in May,
81
00:04:17,991 --> 00:04:19,993
the keepers took care of him
very closely,
82
00:04:19,993 --> 00:04:24,764
so he's very desensitized
to being around us.
83
00:04:24,764 --> 00:04:27,868
He'll walk right up to us
when we give him his grain
84
00:04:27,868 --> 00:04:30,770
and he's just
a very good giraffe.
85
00:04:30,770 --> 00:04:32,873
He's got
a very sweet personality.
86
00:04:34,875 --> 00:04:36,743
And now
with these new baby giraffes
87
00:04:36,743 --> 00:04:38,011
joining the family,
88
00:04:38,011 --> 00:04:40,814
Lester seems to be getting back
to his old self.
89
00:04:45,018 --> 00:04:47,487
That's what I love
about the new calves being here
90
00:04:47,487 --> 00:04:49,956
is that that's kind of
brought that out in him again.
91
00:04:49,956 --> 00:04:51,791
He was not a loner,
92
00:04:51,791 --> 00:04:53,927
but he was much more calm
than a giraffe his age
93
00:04:53,927 --> 00:04:55,862
normally would be.
94
00:04:55,862 --> 00:04:57,864
So now that we have
these new little ones,
95
00:04:57,864 --> 00:05:01,735
he's really kind of just started
hanging out with them
96
00:05:01,735 --> 00:05:03,970
and acting a little more fun.
97
00:05:05,906 --> 00:05:08,842
Fortunately, calm little
Lester has a fun friend
98
00:05:08,842 --> 00:05:12,913
in this
still unnamed baby female.
99
00:05:12,913 --> 00:05:15,615
She is definitely
the liveliest of the bunch,
100
00:05:15,615 --> 00:05:17,551
she's a very dainty little girl,
101
00:05:17,551 --> 00:05:20,487
she steps around
all our mud puddles.
102
00:05:20,487 --> 00:05:24,891
She's made the group
very lively actually.
103
00:05:24,891 --> 00:05:26,960
It's wonderful
having all the young ones there
104
00:05:26,960 --> 00:05:29,963
and just seeing them play
and chase each other.
105
00:05:33,867 --> 00:05:36,937
Some of our older females
that don't have any offspring,
106
00:05:36,937 --> 00:05:38,672
they hover around her,
107
00:05:38,672 --> 00:05:40,974
they'll come check on her
and take care of her.
108
00:05:42,776 --> 00:05:44,611
Giraffes grow up fast.
109
00:05:46,413 --> 00:05:47,414
In the wild,
110
00:05:47,414 --> 00:05:49,983
Lester would be weaned
between 9 to 12 months.
111
00:05:49,983 --> 00:05:51,685
By 1 to 3 years old,
112
00:05:51,685 --> 00:05:53,887
he would leave
to join an all-male group.
113
00:05:53,887 --> 00:05:55,822
And then
when he's around 7 or 8,
114
00:05:55,822 --> 00:05:57,924
start a family of giants
all his own.
115
00:06:00,093 --> 00:06:01,061
But here at the zoo,
116
00:06:01,061 --> 00:06:04,030
he gets a bit more time
to just play around
117
00:06:04,030 --> 00:06:06,633
and be a young giraffe
having fun.
118
00:06:12,505 --> 00:06:14,541
Twins are usually
double the trouble.
119
00:06:15,976 --> 00:06:19,145
But when you've got two sets
of twin baby pronghorns,
120
00:06:19,145 --> 00:06:21,081
well,
that's four times the work.
121
00:06:22,215 --> 00:06:23,850
And four times the meat
122
00:06:23,850 --> 00:06:27,721
for a predator
looking for a tasty treat.
123
00:06:27,721 --> 00:06:31,191
Pronghorn are very vulnerable
to a few predators in the wild,
124
00:06:31,191 --> 00:06:33,526
the biggest one is wolves
and coyotes.
125
00:06:35,562 --> 00:06:36,963
When baby pronghorns are
born,
126
00:06:36,963 --> 00:06:39,532
they take a couple of hours
to get up and go.
127
00:06:39,532 --> 00:06:42,202
So mom usually leaves them
hidden in some tall grass
128
00:06:42,202 --> 00:06:45,238
to wait until she comes back
to nurse them.
129
00:06:45,238 --> 00:06:49,042
But mum isn't worried
about her newborns,
130
00:06:49,042 --> 00:06:51,945
because baby pronghorns
have no smell to them,
131
00:06:51,945 --> 00:06:52,779
so they can stay hidden
132
00:06:52,779 --> 00:06:55,749
even when predators
are very close.
133
00:06:55,749 --> 00:06:56,616
Besides hiding
134
00:06:56,616 --> 00:06:58,885
baby pronghorns
don't have any defenses,
135
00:06:58,885 --> 00:07:01,154
so it's up to them
to eat as much as they can
136
00:07:01,154 --> 00:07:02,722
so they can grow fast.
137
00:07:04,557 --> 00:07:07,894
Baby pronghorns
are basically miniature versions
138
00:07:07,894 --> 00:07:10,897
of the adults,
but they are so cute.
139
00:07:10,897 --> 00:07:12,999
They've got
these huge brown eyes
140
00:07:12,999 --> 00:07:18,038
with these wonderful eyelashes,
great big ears, slender legs.
141
00:07:19,906 --> 00:07:22,042
And they like to hit the
bottle pretty hard.
142
00:07:22,876 --> 00:07:25,078
The animals take
30 seconds to a minute
143
00:07:25,078 --> 00:07:27,947
to take that milk in.
144
00:07:27,947 --> 00:07:30,250
It's every three hours
from 7:00 in the morning
145
00:07:30,250 --> 00:07:34,020
until 10:00 at night
and then we start to cut back.
146
00:07:35,622 --> 00:07:38,525
They are being bottle-fed
at this point in time,
147
00:07:38,525 --> 00:07:39,993
because their mothers
148
00:07:39,993 --> 00:07:41,761
were not
particularly good mothers.
149
00:07:41,761 --> 00:07:43,163
Our other mother,
150
00:07:43,163 --> 00:07:46,066
who we affectionately call
Blue tag,
151
00:07:46,066 --> 00:07:49,035
was really interested
in both her twins initially.
152
00:07:49,035 --> 00:07:52,739
She cleaned them off,
she let both of them nurse.
153
00:07:52,739 --> 00:07:56,543
But then she lost interest
and we were losing the twins,
154
00:07:56,543 --> 00:08:00,046
because they were hungry
and she was not nursing them.
155
00:08:00,046 --> 00:08:02,916
But luckily these twins
have each other to lean on
156
00:08:02,916 --> 00:08:04,584
even if they can't depend
on mom.
157
00:08:06,920 --> 00:08:09,255
What you'll see quite often
is they'll be resting together,
158
00:08:09,255 --> 00:08:11,758
one will get up
and start to graze
159
00:08:11,758 --> 00:08:13,893
and that will sort of
get the other one up
160
00:08:13,893 --> 00:08:15,261
and grazing.
161
00:08:16,996 --> 00:08:18,998
Both sets of twins
love to eat together
162
00:08:18,998 --> 00:08:20,734
and they're never far apart.
163
00:08:23,303 --> 00:08:24,938
They're also keeping
a careful eye
164
00:08:24,938 --> 00:08:26,339
on the adults in the herd,
165
00:08:26,339 --> 00:08:28,808
which is how they'll learn
proper pronghorn behavior
166
00:08:28,808 --> 00:08:31,177
without their mothers
to teach them.
167
00:08:31,177 --> 00:08:33,046
So they're going to
hopefully,
168
00:08:33,046 --> 00:08:35,014
adapt
to typical pronghorn behavior
169
00:08:35,014 --> 00:08:37,917
by watching
what the adults are doing.
170
00:08:37,917 --> 00:08:38,785
Watching the adults
171
00:08:38,785 --> 00:08:40,820
will teach the babies
how to survive
172
00:08:40,820 --> 00:08:42,922
like where to find
the tastiest treats,
173
00:08:42,922 --> 00:08:44,257
how to hide from predators,
174
00:08:44,257 --> 00:08:47,060
and most importantly
how to move fast,
175
00:08:47,060 --> 00:08:48,862
their main defense.
176
00:08:48,862 --> 00:08:51,931
And a pronghorn needs to learn
how to use these,
177
00:08:51,931 --> 00:08:54,167
they're a cross
between horns and antlers
178
00:08:54,167 --> 00:08:56,269
and both males and female
have them.
179
00:08:56,269 --> 00:08:59,839
Although a female's prongs
are smaller and develop later.
180
00:08:59,839 --> 00:09:00,974
Little male
is already developing
181
00:09:00,974 --> 00:09:01,941
little horn buds,
182
00:09:01,941 --> 00:09:03,910
so if you were to touch
the top of its head,
183
00:09:03,910 --> 00:09:06,780
you'd feel two little bumps.
184
00:09:06,780 --> 00:09:08,815
Baby pronghorns
have to grow up fats,
185
00:09:08,815 --> 00:09:10,984
so they can survive
a long cold winter.
186
00:09:12,852 --> 00:09:14,654
Pronghorn have
this great thick coat
187
00:09:14,654 --> 00:09:17,157
for winter,
which they will shed,
188
00:09:17,157 --> 00:09:19,025
so they'll be shaking
their coats
189
00:09:19,025 --> 00:09:21,027
and out will emerge
a summer coat
190
00:09:21,027 --> 00:09:23,029
which is much thinner.
191
00:09:23,029 --> 00:09:25,131
Light-colored fur
helps pronghorns blend
192
00:09:25,131 --> 00:09:27,767
into the tall dry grasses
where they live.
193
00:09:29,035 --> 00:09:30,937
They literally disappear
into that grass
194
00:09:30,937 --> 00:09:35,041
and you have to look
quite carefully for them.
195
00:09:35,041 --> 00:09:38,044
Hiding is important for
babies to avoid being eaten,
196
00:09:38,044 --> 00:09:40,980
but sometimes
they also have to run away
197
00:09:40,980 --> 00:09:43,049
and pronghorns
are amazing runners.
198
00:09:45,218 --> 00:09:47,053
So as a car
goes down the highway
199
00:09:47,053 --> 00:09:48,655
or you're driving
down the highway
200
00:09:48,655 --> 00:09:50,790
at about 100 kilometers an hour,
201
00:09:50,790 --> 00:09:52,992
pronghorn can run
about that fast.
202
00:09:54,894 --> 00:09:56,896
That's almost as fast
as a cheetah
203
00:09:56,896 --> 00:10:00,934
and pronghorns can keep up
their high speeds even longer.
204
00:10:00,934 --> 00:10:03,903
The babies often bound around
inside the zoo enclosure,
205
00:10:03,903 --> 00:10:05,004
building up their muscle,
206
00:10:05,004 --> 00:10:06,973
so they can make
those high-speed runs.
207
00:10:06,973 --> 00:10:14,314
(♪♪♪)
208
00:10:14,314 --> 00:10:17,917
It's hard for predators
to sneak up on pronghorns,
209
00:10:17,917 --> 00:10:18,918
they have protruding eyes
210
00:10:18,918 --> 00:10:21,287
which means they can see
pretty far on each side.
211
00:10:23,256 --> 00:10:25,892
Pronghorn also have
these giant ears,
212
00:10:25,892 --> 00:10:27,927
they're great
for flicking flies,
213
00:10:27,927 --> 00:10:29,329
but they're also
paying attention
214
00:10:29,329 --> 00:10:31,931
to the landscape
and what's going on around them.
215
00:10:34,100 --> 00:10:37,003
Pronghorns
are very curious creatures,
216
00:10:37,003 --> 00:10:39,472
hunters used to tie rags
to poles and wave them
217
00:10:39,472 --> 00:10:42,909
until the pronghorns came over
to see what was going on.
218
00:10:42,909 --> 00:10:44,777
Flagging isn't allowed anymore,
219
00:10:44,777 --> 00:10:47,814
the pronghorns still like to get
a close look at the action.
220
00:10:47,814 --> 00:10:48,882
(Cameraman laughs)
221
00:10:48,882 --> 00:10:50,283
Alright.
222
00:10:50,283 --> 00:10:53,820
When they're not
investigating, pronghorns are
usually eating,
223
00:10:53,820 --> 00:10:56,389
sitting down
or doing both at once.
224
00:11:00,793 --> 00:11:01,728
If they fall asleep,
225
00:11:01,728 --> 00:11:04,931
it's usually for only 10 minutes
at a time.
226
00:11:04,931 --> 00:11:06,733
That's because
the threat of predators
227
00:11:06,733 --> 00:11:08,468
is always lurking
228
00:11:08,468 --> 00:11:11,137
and a gentle herbivore
has to stay alert.
229
00:11:11,137 --> 00:11:12,138
But luckily,
230
00:11:12,138 --> 00:11:14,007
these babies are watching out
for each other,
231
00:11:14,007 --> 00:11:16,376
making sure that no nearby wolf
is going to get
232
00:11:16,376 --> 00:11:18,011
a two-for-one meal.
233
00:11:18,011 --> 00:11:32,759
(♪♪♪)
234
00:11:32,759 --> 00:11:35,895
Moms come in all stripes,
but if you're baby zebra,
235
00:11:35,895 --> 00:11:37,096
you should
count your lucky stars
236
00:11:37,096 --> 00:11:38,798
that you get a zebra mother.
237
00:11:41,100 --> 00:11:42,802
All zebra moms
are very good moms,
238
00:11:42,802 --> 00:11:43,870
they're very protective.
239
00:11:43,870 --> 00:11:47,073
And you don't wanna get
too close to a baby zebra,
240
00:11:47,073 --> 00:11:50,376
'cause mom is going to give you
one of those mean kicks.
241
00:11:50,376 --> 00:11:53,980
Baby zebras start to walk
just 20 minutes after birth
242
00:11:53,980 --> 00:11:55,481
and after an hour they can run.
243
00:11:59,018 --> 00:12:00,486
That's important,
because zebra herds
244
00:12:00,486 --> 00:12:03,356
are always on the move
to find food and water.
245
00:12:03,356 --> 00:12:07,527
And if a predator comes around,
zebras have to start hoofing it.
246
00:12:07,527 --> 00:12:08,494
They are horses,
247
00:12:08,494 --> 00:12:12,332
they have endurance
and they can really run.
248
00:12:12,332 --> 00:12:16,169
Zebras are a tasty treat
for cheetahs, hyenas, and lions,
249
00:12:16,169 --> 00:12:19,038
so being bale to take off
and run at a moment's notice
250
00:12:19,038 --> 00:12:21,808
will keep these babies alive.
251
00:12:21,808 --> 00:12:22,842
When danger's around,
252
00:12:22,842 --> 00:12:24,043
that whole herd
will all take off
253
00:12:24,043 --> 00:12:26,112
at the same time.
254
00:12:26,112 --> 00:12:28,948
All hoof stock has that fight
or flight instinct
255
00:12:28,948 --> 00:12:31,084
and generally gonna be
a flight thing.
256
00:12:31,084 --> 00:12:34,087
The whole herd gets scared,
they're all gonna run.
257
00:12:34,087 --> 00:12:35,355
When danger's close by,
258
00:12:35,355 --> 00:12:38,124
zebras bark or whinny
to warn each other.
259
00:12:38,124 --> 00:12:39,525
Their ears
are always pricked up
260
00:12:39,525 --> 00:12:42,095
to listen for predators.
261
00:12:42,095 --> 00:12:44,330
And a zebra's eyes
sit on the side of its head,
262
00:12:44,330 --> 00:12:47,467
so it can see
nearly all the way behind it.
263
00:12:47,467 --> 00:12:49,969
But those aren't a zebra's
only secret weapons,
264
00:12:49,969 --> 00:12:52,438
their stripes evolve
to help keep them safe.
265
00:12:55,208 --> 00:12:57,043
They group together
266
00:12:57,043 --> 00:13:00,313
and those stripes create
a confusing pattern
267
00:13:00,313 --> 00:13:03,249
to predators.
268
00:13:03,249 --> 00:13:05,118
You can tell
the younger zebras apart,
269
00:13:05,118 --> 00:13:07,220
because they're born
with brown and white stripes,
270
00:13:07,220 --> 00:13:09,055
which darken as they age.
271
00:13:10,456 --> 00:13:12,525
Even though
they all look the same to us,
272
00:13:12,525 --> 00:13:14,961
zebra stripes are also
how babies can recognize
273
00:13:14,961 --> 00:13:16,496
their moms.
274
00:13:21,100 --> 00:13:23,136
And babies stick close
to their moms,
275
00:13:23,136 --> 00:13:26,339
so when the herd takes off
they don't get left behind.
276
00:13:28,941 --> 00:13:31,077
Moms and baby zebras
have very good bonds,
277
00:13:31,077 --> 00:13:33,446
they're very strongly connected.
278
00:13:33,446 --> 00:13:35,448
Female zebras
stay with their herd,
279
00:13:35,448 --> 00:13:38,184
but after two years
male zebras break off
280
00:13:38,184 --> 00:13:41,220
to start their own herd
as a zebra dad.
281
00:13:41,220 --> 00:13:44,524
Zebra dads are good dads,
they are very protective
282
00:13:44,524 --> 00:13:47,026
and nothing else is gonna hurt
his herd.
283
00:13:47,960 --> 00:13:51,164
Moms and dads know their
babies by a unique smell.
284
00:13:51,164 --> 00:13:52,899
New moms
usually keep their babies
285
00:13:52,899 --> 00:13:54,567
away from the herd
for a few days
286
00:13:54,567 --> 00:13:57,103
to make sure her baby
can recognize her
287
00:13:57,103 --> 00:13:58,571
before they join
the rest of the herd.
288
00:14:02,175 --> 00:14:04,677
Zebra parents never adopt
an orphan baby,
289
00:14:04,677 --> 00:14:06,612
so if anything happens
to its parents,
290
00:14:06,612 --> 00:14:09,115
a young zebra is on its own.
291
00:14:09,115 --> 00:14:10,983
And a baby zebra
is an easy target
292
00:14:10,983 --> 00:14:12,452
without a mom to protect it.
293
00:14:14,921 --> 00:14:16,622
They nurture their foals
up to two years,
294
00:14:16,622 --> 00:14:20,126
they will not mate again
until that foal is ready
295
00:14:20,126 --> 00:14:23,996
to be pushed away from mom.
296
00:14:23,996 --> 00:14:27,033
But before that happens,
babies have a lot to learn.
297
00:14:30,002 --> 00:14:33,206
Baby zebras nurse until they are
about 8 to 12 months old,
298
00:14:33,206 --> 00:14:37,043
but they also like to nibble
on grass, just like mom.
299
00:14:37,043 --> 00:14:38,044
The babies
have the advantage here
300
00:14:38,044 --> 00:14:40,980
of being able to learn foraging
from their mom.
301
00:14:40,980 --> 00:14:41,848
Besides mom,
302
00:14:41,848 --> 00:14:44,117
baby zebras often spend
a lot of time
303
00:14:44,117 --> 00:14:45,084
with their siblings.
304
00:14:45,084 --> 00:14:46,986
Zebras love to chase each other.
305
00:14:48,154 --> 00:14:51,591
Baby zebras are very playful,
play is learning, play is good,
306
00:14:51,591 --> 00:14:52,658
play is social.
307
00:14:52,658 --> 00:14:56,095
So it's very important
that they are very active.
308
00:14:56,095 --> 00:14:57,396
They're learning
those social skills,
309
00:14:57,396 --> 00:15:01,701
but
it's a very strong herd impact
310
00:15:01,701 --> 00:15:03,669
and they've got to learn
their place in the herd.
311
00:15:05,404 --> 00:15:08,007
Being in a herd
has important responsibilities.
312
00:15:08,007 --> 00:15:10,576
In the wild,
zebras go on guard duty,
313
00:15:10,576 --> 00:15:12,578
one zebra
will watch for predators
314
00:15:12,578 --> 00:15:14,447
while the rest
drink from watering holes.
315
00:15:18,985 --> 00:15:20,686
Zebras only sleep
when they're in groups,
316
00:15:20,686 --> 00:15:23,055
so there's always others
to watch for danger.
317
00:15:27,026 --> 00:15:28,461
Good thing
mom is always close by
318
00:15:28,461 --> 00:15:29,762
to keep an eye out,
319
00:15:29,762 --> 00:15:33,533
because baby zebras need
lots and lots of sleep.
320
00:15:33,533 --> 00:15:40,406
(♪♪♪)
321
00:15:40,406 --> 00:15:42,441
Ah, so they can make sure
322
00:15:42,441 --> 00:15:45,011
they have the energy to get up
and go.
323
00:15:45,011 --> 00:15:55,154
(♪♪♪)
324
00:15:55,154 --> 00:15:58,257
Muskoxen are fearsome-looking
Arctic creatures
325
00:15:58,257 --> 00:16:03,095
with masses of shaggy fur,
curved horns,
326
00:16:03,095 --> 00:16:04,597
and bony head plates.
327
00:16:07,700 --> 00:16:10,369
They're not animals
you wanna get too close to.
328
00:16:13,139 --> 00:16:16,309
Unless you're a baby muskox
snuggling up to mom.
329
00:16:19,078 --> 00:16:21,547
Bulldozer
is a 6-week-old muskox
330
00:16:21,547 --> 00:16:23,249
and while he may look
pretty independent
331
00:16:23,249 --> 00:16:24,417
at this young age,
332
00:16:24,417 --> 00:16:27,086
he's never too far away
from mom Tannis.
333
00:16:27,086 --> 00:16:30,556
After all to a predator
Bulldozer is fresh meat.
334
00:16:33,826 --> 00:16:36,495
She is proving to be
a wonderful mom,
335
00:16:36,495 --> 00:16:39,165
she is very protective of him,
336
00:16:39,165 --> 00:16:41,834
she always has
a watchful eye out for him.
337
00:16:41,834 --> 00:16:44,503
She will call for him
if you know,
338
00:16:44,503 --> 00:16:46,806
he's just gone out of eyeshot
of her.
339
00:16:46,806 --> 00:16:50,042
She is an excellent muskox mom.
340
00:16:52,345 --> 00:16:54,347
Baby muskoxen are born
in the spring
341
00:16:54,347 --> 00:16:56,282
after eight and half months'
gestation.
342
00:16:59,819 --> 00:17:03,389
He was really just a little
black ball of fluff
343
00:17:03,389 --> 00:17:06,726
that couldn't stand
for probably two or three hours
344
00:17:06,726 --> 00:17:07,793
just after birth.
345
00:17:09,428 --> 00:17:10,296
But in the wild,
346
00:17:10,296 --> 00:17:11,864
there's no time to wait
for the newborns
347
00:17:11,864 --> 00:17:13,332
to get their footing.
348
00:17:13,332 --> 00:17:16,335
And baby muskoxen have to get up
and go quickly
349
00:17:16,335 --> 00:17:18,371
and learn from mom
how to survive.
350
00:17:20,473 --> 00:17:23,109
Babies are a tasty treat
for Arctic predators
351
00:17:23,109 --> 00:17:24,710
like wolves and foxes,
352
00:17:24,710 --> 00:17:27,146
so mothers are always
on the lookout for threats.
353
00:17:28,614 --> 00:17:30,850
The mother will typically
put herself
354
00:17:30,850 --> 00:17:34,387
between whatever is the threat
and the baby
355
00:17:34,387 --> 00:17:36,088
as a defense mechanism.
356
00:17:37,290 --> 00:17:38,891
Mom is Bulldozer's protector
357
00:17:38,891 --> 00:17:40,893
until he can look
after himself,
358
00:17:40,893 --> 00:17:42,528
so she chases off anything
359
00:17:42,528 --> 00:17:44,697
that might want to make him
a meal.
360
00:17:48,534 --> 00:17:49,702
But adult muskoxen
361
00:17:49,702 --> 00:17:51,704
can be a threat
to babies as well,
362
00:17:51,704 --> 00:17:57,143
so Tannis is always watchful
of dad Shaner when he's around.
363
00:17:57,143 --> 00:18:00,246
Muskox will show
they're dominant to other muskox
364
00:18:00,246 --> 00:18:02,181
by doing something called
the head-butt,
365
00:18:02,181 --> 00:18:04,517
so what you'll see is
they put their heads down
366
00:18:04,517 --> 00:18:07,353
and literally do a head-butt
with that large horn plate.
367
00:18:08,921 --> 00:18:10,756
It's also
the muskox's best method
368
00:18:10,756 --> 00:18:11,857
of attack and defense,
369
00:18:11,857 --> 00:18:14,694
so little Bulldozer
will have to learn how to do it
370
00:18:14,694 --> 00:18:16,095
if he's going to survive.
371
00:18:19,565 --> 00:18:22,935
Adult muskox males
can weigh around 800 pounds,
372
00:18:22,935 --> 00:18:24,837
so they're not a beast
you wanna make angry.
373
00:18:26,939 --> 00:18:29,275
One day Bulldozer
will grow to that size,
374
00:18:29,275 --> 00:18:30,276
but in the meantime
375
00:18:30,276 --> 00:18:32,745
it's best to keep his distance
from dad Shaner.
376
00:18:35,781 --> 00:18:37,950
Muskoxen
also have powerful hooves,
377
00:18:37,950 --> 00:18:41,687
which is an important adaptation
for life in the high north.
378
00:18:41,687 --> 00:18:43,556
They use these hooves
to break through ice
379
00:18:43,556 --> 00:18:46,325
to get to fresh water
and to dig through snow
380
00:18:46,325 --> 00:18:49,729
to get to the roots, mosses,
and likens they feed on.
381
00:18:49,729 --> 00:18:52,198
But how do they stay warm up
north on the tundra?
382
00:18:56,469 --> 00:18:57,837
Muskox have an undercoating
383
00:18:57,837 --> 00:18:59,772
that helps keep them warm
in the winter,
384
00:18:59,772 --> 00:19:01,374
which they shed for the summer.
385
00:19:03,309 --> 00:19:05,311
This undercoating
is called qiviut
386
00:19:05,311 --> 00:19:07,446
and it's even softer
than cashmere.
387
00:19:07,446 --> 00:19:09,815
It is highly valued for sweaters
and scarves.
388
00:19:12,685 --> 00:19:14,987
Muskoxen shed their qiviut
by rubbing it off
389
00:19:14,987 --> 00:19:16,689
on rocks and trees.
390
00:19:16,689 --> 00:19:17,556
Here at the zoo,
391
00:19:17,556 --> 00:19:19,492
they have a nice rubbing post
to use.
392
00:19:22,862 --> 00:19:25,364
Even though Bulldozer won't need
to shed his baby qiviut
393
00:19:25,364 --> 00:19:26,899
until the following spring,
394
00:19:26,899 --> 00:19:29,902
mom is making sure
he gets the idea for next year.
395
00:19:31,670 --> 00:19:32,838
During his first winter
396
00:19:32,838 --> 00:19:34,974
Bulldozer will be sticking close
to his mom
397
00:19:34,974 --> 00:19:36,909
and her thick adult qiviut.
398
00:19:38,878 --> 00:19:41,814
But the layers that help
muskoxen survive the winter
399
00:19:41,814 --> 00:19:43,849
can make the summer heat
pretty intense,
400
00:19:43,849 --> 00:19:46,252
even after an adult
has shed their qiviut.
401
00:19:47,953 --> 00:19:51,624
One of the adaptations
you will see with the muskox
402
00:19:51,624 --> 00:19:54,560
in the summer heat
is they will just lay down
403
00:19:54,560 --> 00:19:56,862
and stay very quiet and still.
404
00:19:56,862 --> 00:19:58,464
And to stay cool
what you'll see
405
00:19:58,464 --> 00:20:01,434
is almost their body
moving up and down,
406
00:20:01,434 --> 00:20:03,803
it's kinda like panting
like a dog does
407
00:20:03,803 --> 00:20:07,273
that just releases the heat
that they're feeling.
408
00:20:07,273 --> 00:20:10,443
Muskoxen can run
up to 25 miles an hour,
409
00:20:10,443 --> 00:20:11,944
but they usually
prefer to move slowly,
410
00:20:11,944 --> 00:20:14,847
because they can overheat
so quickly.
411
00:20:14,847 --> 00:20:16,615
They will even lie down to eat.
412
00:20:19,552 --> 00:20:22,888
It's all typical,
very healthy muskox behavior.
413
00:20:25,291 --> 00:20:26,826
Bulldozer is grazing
for greenery
414
00:20:26,826 --> 00:20:28,427
like the rest of the herd,
415
00:20:28,427 --> 00:20:30,329
but he's still nursing
from time to time.
416
00:20:32,565 --> 00:20:34,533
A muskox when they are
nursing
417
00:20:34,533 --> 00:20:36,869
typically go underneath
all that fur,
418
00:20:36,869 --> 00:20:38,871
it's hard to even see
how they do it,
419
00:20:38,871 --> 00:20:40,973
but they go under
and they just toss
420
00:20:40,973 --> 00:20:43,909
with their head
to find that nipple.
421
00:20:43,909 --> 00:20:47,046
But little Bulldozer
can't nurse forever.
422
00:20:47,046 --> 00:20:51,417
The mother is starting to
wean her young muskox,
423
00:20:51,417 --> 00:20:54,420
the behavior is
quite often she will walk away,
424
00:20:54,420 --> 00:20:57,089
she will butt him
with his head.
425
00:20:57,089 --> 00:20:59,825
She generally
is discouraging him from nursing
426
00:20:59,825 --> 00:21:01,961
and going underneath her.
427
00:21:01,961 --> 00:21:02,795
By encouraging Bulldozer
428
00:21:02,795 --> 00:21:05,030
to get most of his food
from grazing
429
00:21:05,030 --> 00:21:06,132
rather than nursing,
430
00:21:06,132 --> 00:21:08,801
Tannis is making sure
he can get along without her
431
00:21:08,801 --> 00:21:09,969
when he's ready.
432
00:21:11,704 --> 00:21:14,507
That includes showing him
the tastiest morsels of food
433
00:21:14,507 --> 00:21:15,741
he can graze on.
434
00:21:18,878 --> 00:21:19,745
During their first winter
435
00:21:19,745 --> 00:21:22,014
baby muskoxen
are still very dependent
436
00:21:22,014 --> 00:21:24,583
on their mothers
for warmth and protection
437
00:21:24,583 --> 00:21:26,018
even if
they're no longer nursing.
438
00:21:28,554 --> 00:21:31,857
Male muskoxen reach adulthood
at 3 or 4 years old,
439
00:21:31,857 --> 00:21:33,759
but it isn't
until they're 6 or 7
440
00:21:33,759 --> 00:21:35,861
when they start competing
with other males
441
00:21:35,861 --> 00:21:37,630
for dominance of a herd.
442
00:21:37,630 --> 00:21:39,498
It's a dramatic scene
in the summer
443
00:21:39,498 --> 00:21:42,501
with the male muskoxen charging
and head-butting each other.
444
00:21:45,638 --> 00:21:46,539
The younger muskoxen
445
00:21:46,539 --> 00:21:48,674
usually aren't strong enough
to compete
446
00:21:48,674 --> 00:21:50,943
and end up being forced out
and having to start
447
00:21:50,943 --> 00:21:52,044
their own herds.
448
00:21:55,614 --> 00:21:59,919
But for now young Bulldozer
is still safe with mom,
449
00:21:59,919 --> 00:22:03,756
learning the dos and don'ts
of how to survive as a muskox.
450
00:22:03,756 --> 00:22:09,995
(♪♪♪)
451
00:22:09,995 --> 00:22:13,432
Staying alive is important
when you're a cute little calf
452
00:22:13,432 --> 00:22:17,503
and these bright-eyed beasts
hit the ground running.
453
00:22:17,503 --> 00:22:19,605
With mom not always around
to save them,
454
00:22:19,605 --> 00:22:22,474
they need to protect themselves
until they're big and strong.
455
00:22:25,878 --> 00:22:27,880
These calves
need to learn quickly
456
00:22:27,880 --> 00:22:28,981
to stay alive.
457
00:22:28,981 --> 00:22:39,024
(♪♪♪)
458
00:22:39,024 --> 00:22:49,001
(♪♪♪)
459
00:22:49,001 --> 00:22:59,044
(♪♪♪)
460
00:22:59,044 --> 00:23:04,883
(♪♪♪)
35580
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