The Croctopus is an official Maxis creature, present in the final game. It is based on both the octopus and the crocodile from Earth. The name is a portmonteau of "Crocodile" and "Octopus" as well.
The Croctopus does not normally move very fast, but strangely, when locked onto a target, it can charge at very high speeds. It also has a fairly strong bite, which it uses as a primary means of attacking prey. When being attacked, its hard tentacles protect it from taking too much damage. It is also known to be an okay singer, when put in social situations.