The platypus, scientifically known as Ornithorhynchus anatinus or commonly referred to as the duck-billed platypus, is a unique semiaquatic mammal that lays eggs. It is native to eastern Australia, including Tasmania, and is the only living member of its family (Ornithorhynchidae) and genus (Ornithorhynchus). While related species can be found in the fossil record, the platypus stands as the sole representative today.

Belonging to the group of monotremes, which includes the four species of echidna, the platypus is one of the five remaining species that lay eggs instead of giving birth to live young. Like other monotremes, it possesses the ability to sense prey through electrolocation. Notably, the male platypus possesses a venomous spur on its hind foot, capable of inflicting severe pain on humans, making it one of the few venomous mammals known.

For more information, you can visit the Wikipedia page on the platypus.