1
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What's that? It's a mama.

2
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Mamas are vertebrate animals because they've got a skeleton with a spine.

3
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Mamas are born from their mother's womb.

4
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So they are baby parrots, and babies drink their mother's milk.

5
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That's why we call them mammals.

6
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They walk with their forelegs to go to the woods.

7
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They are for us, for the cowering.

8
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Listen! It's a bird!

9
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Birds are also vertebrates.

10
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Are they birds from the mother's womb?

11
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No, they aren't. They are oviparous because they are born from eggs.

12
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Have feathers covering their bodies.

13
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Fish are vertebrate animals too. They are oviparous.

14
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Why? Because they are born from eggs.

15
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What body covering do they have?

16
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They have scales.

17
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Can they walk or fly?

18
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No, they can't.

19
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They swim with their fins.

20
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Reptiles are vertebrates and oviparous animals.

21
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Their bodies are covered with scales.

22
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Tortoises have a shell too.

23
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Their legs are very short, so they grow.

24
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But snakes have no legs at all, so they slither to move about.

25
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Our baby aunts are waterfowl and oviparv too. Their babies are called tadpoles.

26
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They haven't any body covering, just bare skin.

27
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They walk, jump on land and swim in water.

28
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Oops, you aren't bird surprise animals.

29
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No, we aren't. We haven't got spike.

30
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We are invertebrate animals. Insects are invertebrates.

31
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Some of us fly, some others walk.