Australian Platypus Conservancy: Information about the platypus (Ornithorhynchus anatinus), research, its conservation and protection, and platypus-spotting opportunities. Also offers merchandise for sale.
Duck-Billed Platypus (Ornithorhynchus anatinus): Duck-Billed Platypus facts, photos and message board.
Platypus Tropical Research: Information, field research trips, first platypus research project in Tropical North Queensland.
Rainforest Platypus: Rainforest Platypus, photos and text. Courtesy of Chambers Wildlife Rainforest Lodge, Atherton Tableland, Far North Queensland, Australia
Sleep of the Platypus: Article by Henry Gee about the sleeping patterns of the platypus as compared with other mammals.
What is a Platypus?: Etymology and a reading list.