Over millions of years Australia has been isolated from other land masses developing an unique fauna, animal world detached from the rest that breaks zoology patterns prevailing in other land masses. Observe the evolutionary success of marsupials to discover his prodigious capacity to adapt, both to the prairies, grasslands and wooded areas, home to numerous species living in the trees. After sunset, we will witness the intense nightlife of these animals, inheritance of a remote age in which competed with dinosaurs to survive. Delving into this evolutionary duel, we can visit South African forests. There, after observing eutherian and marsupials, we confirm the hypothesis that asserts the importance of cranial capacity gestation versus mode of the offspring. Kangaroos, koalas, wombats, walabies and native cats are the protagonists of this approach to marsupials. But Australia also surprise us with other species that defy all logic: birds that reach two meters in height and whose male is responsible for incubation; fish that developed lungs, blue tongue lizards, and mammals capable of laying eggs like the platypus and the echidna.
