No widely accepted name for the plural term
Scientists have used several terms over the years but none are universally accepted:
Platypuses, Platypoda and Platypi have all been used in the past
When it was originally discovered, it was thought to be a hoax. The naturalist who received the pelt thought a duck bill was sewn on to a beaver-like animal. According to the story, he even tried to cut the bill off with a scissors!
An interesting fact about the Platypus' relatives is that they are all extinct. The Platypus is the sole survivor of both its family and genus!
The Platypus is known to grow larger in Tasmania because there are less predators!
Platypuses are actually quite small. They only grow up to five pounds and can only get about twenty inches long.