1. The cheetah is the fastest land animal, reaching speeds up to 70 miles per hour.

2. The blue whale is the largest animal on Earth, growing up to 100 feet long and weighing up to 200 tons.

3. The giraffe is the tallest animal in the world, with its long neck measuring up to six feet.

4. A group of crows is called a murder.

5. The penguin is the only bird that can swim, but not fly.

6. The ant is one of the strongest creatures in the world, able to carry objects up to 50 times its body weight.

7. The chameleon can change its skin color to blend in with its surroundings.

8. The kangaroo is the only animal that can hop.

9. The elephant is the largest land animal, with the African elephant weighing up to 12,000 pounds.

10. The honeybee is the only insect that produces food eaten by humans.

11. The octopus has three hearts and blue blood.

12. The toucan has the largest beak-to-body ratio of any bird.

13. The tortoise is one of the longest-living animals, with some species living up to 150 years.

14. The clownfish can change its gender, with males becoming females when needed.

15. The ostrich is the largest bird, with its eyes bigger than its brain.

16. The sloth is the slowest mammal, moving at a maximum speed of 0.15 miles per hour.

17. The koala sleeps for up to 20 hours a day.

18. The firefly is not a fly, but a type of beetle that emits light.