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This instalment is the first of several to concentrate on mammals. The platypus and the echidna are the only mammals that lay eggs (in much the same manner of reptiles), and it is from such animals that others in the group evolved. Since mammals have warm blood and most have dense fur, they can hunt at night when temperatures drop. It is for this reason that they became more successful than their reptile ancestors, who needed to heat themselves externally. Much of the programme is devoted to marsupials (whose young are partially formed at birth) of which fossils have been found in the Americas dating back 60 million years.
9/13 • Life on Earth • 1979 • Nature
Meet the first animal visitors to a new manmade waterhole in the African savannah. Using state-of-the-art cameras, scientists watch as warthogs and elephants discover the new oasis. But things become dangerous when leopards and lions close in.
S1E1 • Life at the Waterhole • 2021 • Nature
What changes has the Earth has undergone through the eyes of the puma and leopard? From the almost complete disappearance of American wildlife to the rise of man and the industrialized and urban areas of the modern 21st century. Big cats face numerous threats to their survival.
3/3 • Age of Big Cats • 2018 • Nature
James May treks into the wilderness to learn about Darwin's theory of natural selection.
S2E3 • James May's Things You Need to Know • 2012 • Nature
Predators hunt on the dynamic border between land and sea, where chances are brief.
Cameras follow a family of gorillas, with Spy Grub and Spy Fruit testing their intelligence. Elsewhere in Brazil, Spy Jaguar Cub explores a beautiful gathering of water birds, capybara and caiman, and joins Spy Caiman to film a feeding frenzy.
S2E1 • Spy in the Wild • 2020 • Nature