The common name of the animal that lays eggs and has venomous spurs is the platypus. This distinctive mammal is native to Australia and Tasmania and is one of the few monotremes, which are mammals that reproduce by laying eggs rather than giving live birth. The platypus is known for its unique characteristics, including its duck-bill, webbed feet, and the ability to produce venom from spurs located on its hind legs, which is primarily used for defense against predators.