Add Yahoo as a preferred source to see more of our stories on Google. Platypuses are monotremes, one of the oldest branches of mammals, and they reproduce by laying eggs instead of giving birth to ...

Geneticists uncover new insights into how sex chromosome systems work in the platypus and the chicken -- which will lead to better understandings of our own sex chromosome evolution and gene ...

By Paul Harvey The platypus is an evolutionary anomaly. This duck-billed, semiaquatic mammal is both unique and rare. It’s ...

Most humans probably think very little of the platypus — if at all. But this strange Australian mammal, with its webbed feet and beaver-like tail, is actually a treasure trove of genetic information.