Platypuses are so weird that when scientists first discovered them, they thought it was a hoax. Platypuses have been well-known for thousands of years by Indigenous Australians, but when British scholars first encountered them, they were extremely puzzled. The confusion came down to the fact that while being mammals, these bizarre creatures lay eggs, have a duckbill, a beaver’s tail, feet like an otter’s, and the males are even venomous!
100 Mind-Blowing Beaver Facts
Beaver eyelids are transparent so that they can see through them as they swim underwater.