The ultimate guide to invertebrates, with key biological themes to show a wide range of species. Chapter 1: The Bug Buffet Bugs are the base of the food chain, food for just about everything else, but to start the process, they too must eat. Just like the bigger animals of the plains, there are grazers, scavengers, and predators that hunt them, termites growing fungi, and bees making their own honey. Chapter 2: Breeding Rutting deer and flirting love birds might be what we think of with animal courtship, but even bugs need to breed, and they face all the same challenges of winning a mate and raising their young. Some display, some caress, others fight. There are even insects that care for their young. Chapter 3: Army Few creatures have complex levels of regimented society as social insects. Bees, termites, ants, and wasps can form armies to help them build elaborate homes, defend their territories, grow their own food, raise their young and hunt their prey.
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This programme focuses on birds. The feather is key to everything that is crucial about a bird: it is both its aerofoil and its insulator. The earliest feathers were found on a fossilised Archaeopteryx skeleton in Bavaria. However, it had claws on its wings and there is only one species alive today that does so: the hoatzin, whose chicks possess them for about a week or so. Nevertheless, it serves to illustrate the probable movement of its ancestor. It may have taken to the trees to avoid predators, and over time, its bony, reptilian tail was replaced by feathers and its heavy jaw evolved into a keratin beak.
8/13 • Life on Earth • 1979 • Nature
This episode describes the migration of most animals northwards (some from the Antarctic continent, others from the few islands surrounding it) as the continent and surrounding sea freeze over at the end of summer. It shows how young penguins often fall prey to Leopard Seals as they try to make their way across the already partially frozen water and how their stripped remains become food for isopods and meter-long nemerteans (ribbon worms). Before going to the sea, however, the adult penguins must shed their coats (molting).
S1E4 • Life in the Freezer • 2003 • Nature
In the 1990s, one million chimpanzees lived across Central Africa. Since then, habitat loss, hunting for bushmeat, and the exotic pet trade has caused their population to crash to just 200,000. But on Ngamba Island, a semi-wild sanctuary just off the coast of Uganda's Lake Victoria, a team of caregivers is dedicated to giving them another chance in life. Visit this remarkable safe haven, where victims--most arriving as orphaned babies--recover from mental trauma, form a new family, and learn how to be chimps.
2019 • Nature
Two out of five wild plants are threatened with extinction. Today people are finding remarkable ways to help them, and so make our world a little greener and a little wilder.
S1E5 • The Green Planet • 2022 • Nature
There is plenty of food in the Pacific Ocean, but it is the challenge of finding that food that drives all life in the Pacific. In the voracious Pacific we meet a destructive army of mouths, a killer with a hundred mouths and the biggest mouth in the ocean.
3/5 • Big Pacific • 2017 • Nature
The journey begins on the Galapagos' west side at the youngest and most volcanically active islands in the archipelago, Isabela and Fernandina, which are home to a richly diverse wildlife scene. Here, Liz and the team journey into the clouds above Wolf, the tallest volcano in the Galapagos, where they join a group of biologists hunting for the elusive pink iguana, which teeters on the edge of extinction. But how and why did it come to live on the top of a volcano? Back on the research vessel, Liz boards Alucia's Triton submersible to descend a kilometre into the ocean abyss in search of a new species hiding in the darkness. Liz also travels to one of the most remote locations in the Galapagos, Alcedo Volcano, in search of the largest population of giant tortoises. Plagued by drought in recent months, scientists are keen to find out how this prehistoric species has fared. Finally, Liz helps out with a groundbreaking science experiment to x-ray marine iguanas that have so far stunned the scientific community with a new mutation. As with all life on these remote islands, the key to survival is adaptation.
1/3 • Galapagos with Liz Bonnin • 2017 • Nature