Some animals seem out of place at first glance. Sometimes that can be chalked up to the limits of imagination, but other times it's because the animal in question truly is from an era so distant it might as well have taken place on an alien planet. The history of life on Earth stretches further back than the history of humanity, and the number of creatures that were around hundreds of millions of years ago that still coexist with us today might surprise you.
Read on to learn about some of the oldest animals that still share our world today.