15 amazing animal facts that even your biology teacher might not know

The animal world contains countless miracles that are sometimes hard to believe. Penguins with knees, makeup birds, square starfish – all these things seem so unusual that you would think they could not exist on our planet. However, if you continue to read this article, you will find that all of them are true.

smartzune Here’s a compilation of 15 facts about animals that you might not have learned in your biology lessons. And don’t miss our bonus at the end of the article – you will see an amazing bird changing its color every second.