1. Flying Squirrel - YES Like all squirrels (family sciuridae), it's a true rodent.
2. Beaver - YES Indeed they are. To be honest, I wasn't sure about this one before looking it up.
3. Marmot - YES In fact, marmots are in the same family as squirrels.
4. Anteater - NO Anteaters have a separate order (with only a few living species in it).
5. Nutria / Coypu - YES Alternate names for the same aquatic rodent. In some areas, these are more of a pest than rats!
6. Porcupine - YES Porcupines, both old and new world, are actually rodents. I was surprised!
7. Capybara - YES The world's largest rodent, individuals can weight up to 140 pounds!
8. Skunk - NO Mephits are not rodents. I know, this one was a stinker.
9. Vole - YES Small, cute, water-lovin' rodents.
10. Mongoose - NO They are actually classified under carnivora.
11. Lemming - YES Yes, they are rodents but, no, they don't habitually cliffdive.
12. Pika - NO Though the right size and build, they are more closely related to rabbits.
13. Cavy - YES A tricky question! Cavy is the proper name for the "guinea pig".
14. Meerkat - NO Cute as the little guys are, they are in carnivora not rodentia.
15. Shrew - NO Like the Mongoose, the Shrew is in order insectivora.
16. Muskrat - YES The "rat" in the name is not misleading: muskrats are rodents.
17. Pine Marten - NO Hopefully an easy one, if you know what pine martens look like. They are closely related to weasels and, therefore, mustelids.
18. Chinchilla - YES We finish up the list with the softest and cuddliest of the rodents!
How'd you guys do? Was it challenging enough?