- There are 70 million sheep in New Zealand (with 4 million people).
- Hippopotamus milk is pink.
- After bananas a zoo gorilla's favorite food is celery.
- A crocodile can't stick out its tongue.
- Humans shed and regrow outer skin cells every 27 days (almost 1,000 new skins in a lifetime).
- Penguins are only found in the southern hemisphere primarily in Antarctica (excluding zoos above the equator).
- More than 1,000,000 Earths could fit inside the Sun.
- Some tumors can grow hair, teeth, bones, even fingernails.
- The hydrochloric acid found in your stomach is strong enough to dissolve a nail.
- Moths have no stomach.
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