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 The Mammal Society The Mammal Society is a British charity devoted to the research and conservation of British mammals. The Mammal Society was formed in 1954, and the first ever spring conference took place the following year at The University of Exeter. The Mammal Society has a membership of around 2000 mammalogists, ecologists, conservationists, both experts and enthusiasts, all working to develop greater understanding of mammals and the conservation challenges they face. The Society runs national surveys for mammals, for example Mini Mammal Monitoring. You can find more information at mammal.org.uk/surveys_and_monitoring. The Mammal Society is also working to address the