Okay, is it just me or do some of the species we see in the animal kingdom look like someone just hit "copy" and "paste"? All creatures are beautiful and incredible in their own way, of course, but a few definitely seem like they could be twins.
Unfortunately for those particular animal pairs, we humans have a habit of getting them helplessly mixed up. We're like that grandmother that keeps calling her twin grandchildren by each other's names, and at first it was funny but now it's like, "Seriously grandma? You can't tell us apart?"
At this point, it's almost insulting. So let's all take a moment to differentiate between some of the most commonly mixed-up animal pairs before they go through some sort of rebellious teenage phase and dye their hair black to make themselves stand out.