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 surveying. A full list of these courses can be found here. The Society's president is Dr. Paul Chanin, and its current Chair is Dr Fiona Mathews. The Mammal Society publishes a number of informative books for conservationists, enthusiasts and consultants alike, as well as a high impact scientific journal, Mammal Review. In June 2012, The Mammal Society published UK BAP Mammals: Interim Guidelines for Survey Methodologies, Impact Assessment & Mitigation for species for which there was previously no available guidance. http://www.nhbs.com/title/view/196556 The definitive publication of The Mammal Society is the 4th edition of Mammals of The British Isles Handbook. The