Our world is filled with thousands upon thousands of different animals. There are many things we already know about most animals, but we have yet to learn about some of them.

Here are 15 amazing facts about animals you probably didn't know.

 

 

#1 Cow

Cow
 

#4 Dog

Dog


 

#6 Pig

Pig
 

#8 Monkey

Monkey

 

Via Bored Panda