Does a platypus nurse its young?

Yes, but a young platypus feeds differently to either marsupials or placental mammals. The mother has large glands under the skin from which she secretes the milk. The milk ends up on the mother's fur, and it from this that the young platypus feeds. The milk still contains all the nutrients required for the young platypus, as it a couple of months before the baby is ready to hunt for food on the bottom of the river.