text: 1. What are more than one platypus called?\nPlatypuses or platypus (NOT platypi)\n\n2. Are there any platypuses in captivity?\nYes, at least in several Australian zoos (see link) \n\n3. What are male and female playpuse called? Bucks, Does \nThere doesn't seem to be a special name for those. Baby platypuses are called puggles.