Is a Dolphin a Fish?

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 Are penguins birds? Are dolphins fish?

Why do dolphins breathe air, not water; give birth, not lay eggs? Also, they have milk! So if they are mammals, why do they look like fish? Let's learn more about convergent evolution!





https://drive.google.com/drive/folders/12eCE4gI0SEmxJYqMqW8rFAG7sVe0aP-J?usp=sharing

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