@BrianScottTXGS@wonderofscience Male octopuses have a specialized arm called a hectocotylus used for reproduction, which is one of the main ways biologists tell them apart. ๐
Platypus is so weird that the scientists who first discovered it thought it was fake. The European explorers assumed an egg-laying, duck-billed, beaver-tailed, otter-footed, venomous mammal had to be an elaborate hoax