Mammals of Australia introductions of placental mammals into Australian fauna were about (rats), several thousand years ago (dingo), and 200 years ago (many species); the last two were made by humans. Some claims were made about placental mammal fossils from the Eocene of Australia, called "Tingamarra". These claims are based on only one found tooth having some characteristic features of condylarth, and were discussed widely. But both the age and placental nature of these fossils were challenged by other researchers. Monotremes are mammals with a unique method of reproduction: they lay eggs instead of giving birth to live young. Two of the five
The Mammal Society Handbook is well established as the classic reference source detailing the biology, ecology and conservation of every mammal occurring in Britain and Ireland. The 3rd edition, dating to 1991, had long been out of press, until over 100 of the leading mammalogists, mostly members of The Mammal Society, contributed to complete this comprehensive 800-page 4th revision, published in 2008. It presents an authoritative summary of our current knowledge of mammal ecology, biology and conservation issues, with detailed accounts for every species of mammal found in or around the British Isles. http://mammal.org.uk/handbook The Mammal Society The Mammal Society is a British