The duck-billed platypus has the tail of a beaver, the body and fur texture of an otter and the bill and webbed feet of a duck. It grows to half the size of a domestic cat.
Echidna
Enchidnas are medium-sized, have a stocky body with a small head and long snout, and sharp spines on their back and sides. They resemble other spiny mammals such as hedgehogs and porcupines.