The tenrec may be one of the most confusing animals anyone has ever seen. Again, it looks like a rat, but it is so much more than that. The tenrec is actually a combination of a shrew, an otter, and an opossum. This is because it has a long snout that it uses to catch and eat earthworms, has a small body, and has a vestigial tail that it can use for balance and grabbing things. What makes them even more unique is that they’re a mammal that uses stridulation, which is the process of making sound by rubbing body parts together, which is usually only found in insects and snakes.