Platypus DNA (IMAGE) U.S. National Science Foundation Caption New genome research proves platypus DNA is an equally cobbled-together array of avian, reptilian and mammalian lineages that may hold clues for human disease prevention. The male platypus has venomous spurs on his hind feet with poison very similar to that of reptiles. The female lays eggs like birds and lactates to feed their young just like mammals. Credit Zina Deretsky, National Science Foundation Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.