Handbook of the mammals of the world : vol. 5 : monotremes and marsupials
2015
Platypus, opossums, kangaroos, koalas...Monotremes and marsupials include a host of animals that have intrigued mammal fanciers for centuries. Monotremes are a very distinctive ancient group of mammals with only a handful of extant species in Australia and New Guinea and marsupials, with roots in South America, likely reached Australia via Antarctica some 50 million years ago. With relatives remaining in America, Marsupials have adapted to an amazing diversity of lifestyles and habitats.