by Lillie 3A
Platypuses (or platypi) are native Australian mammals. They are monotremes. Monotremes are mammals that lay eggs. They live very close to rivers or ponds.
The female platypus lays a soft shelled egg and keeps it warm until it hatches. When it hatches it is naked and blind. The baby drags itself to its mothers belly where there is milk. It suckles the milk which oozes onto the skin. Echidnas carries the babies in a pouch. Female platypuses do not have nipples, her milk seeps like sweat.
The platypus is endangered because people catch them in nets and because people litter and pollute their environment.