So, to fill in some of your knowledge gaps, here are some animals that are so rare that you’ve probably never heard of them.

So, to test your knowledge today, we’ve prepared the following list of animals that are so rare that even you have probably never heard of them!

I'd never heard of pangolins ... and to the smuggling of arms and drugs, which even people who aren't animal lovers can agree is bad. It's selfishness and ignorance, all of it.

There are some really wonky critters out there that you've probably never heard of — some so odd that you may have to see them to believe that they exist. Jim Schwabel via Shutterstock ...

Here are six adorable-looking (although definitely not pet-material) animals you might not have heard of. Pikas are relatives of the rabbit but are not much bigger than a hamster. They live ...