The mysteries of the animal world

Lessons

1. Fish：Why fish don’t sleep at night?

2. Cats：Why Do Cats Purr？

3. Rabits：Why Do Rabbits Have Long Ears?

4. Seals and Sea Lions：What are the differences between seals and sea lions?

5. Hamster：Why Hamsters stuff their cheeks with food？

6. Deer：Deer Antler, Reindeer Antler, Branched Antler

7. Chicken：Chickens are the only poultry that lay eggs every day.

8. Chameleon: Chameleons are lizards that are native to Africa, Madagascar, and southern Asia.