There are millions of different animals that live on this planet and all of them have specific characteristics, behaviors, even food preferences that make each and every one of them unique. But have you ever wondered why? Why does my dog have the type of fur she has? Why do some monkeys have tails and others don’t? Why do most mammals have four legs, but humans have two? Well, all of the differences you see in animals arose through a process called Speciation. To see how speciation works and how different animals come into existence, check out the Backyard Biology episode below!