Platypus’s mouth and feet are like ducks, its body and tail are like beavers, and its whole body is covered with thick and short hair. It is also a bit like a water wrasse. It can be said that it integrates the characteristics of a variety of animals, but it is specious. So that some people once thought that the platypus was the hybrid product of duck and Australian rat. Of course, this was soon denied.
From its characteristics, platypus is between mammals, reptiles and birds. The boundary between them has not been clearly divided, so the species positioning of platypus is also very vague for a long time. It was not until 1799 that he was recognized by naturalist George Xiao was officially named platypus and eventually became a special species on his own.