The echidna or spiny anteater, is an unusual mammal. It is so different from any other that it still puzzles researchers and scientists ..
Long-beaked echidnas are egg-laying mammals, known as monotremes, a group that also includes the duck-billed platypus and the short-beaked echidna.
The Duck Billed Platypus
Brief descriptions of platypus and echidna, with photographs.
Introduction to the Monotremata
Berkeley's introduction to monotremes, with information about their fossil record, biology, systematics, ecology and morphology.
The echidna and its habits.
Rainforest Platypus, photos and text. Courtesy of Chambers Wildlife Rainforest Lodge, Atherton Tableland, Far North Queensland, Australia
Rainforest Echidna, photos and text. Courtesy of Chambers Wildlife Rainforest Lodge, Atherton Tableland, Far North Queensland, Australia
The platypus is a small, semi-aquatic mammal endemic to the eastern part of Australia, and one of the four extant monotremes