Siberian tigers are the largest of all cats. In historic times, the tiger's range was vast, covering much of Asia. Over the last century, they've experienced an almost total population crash, and at least 97% of those tigers have gone.
Pumas are also known by the names of cougar or mountain lion. However, these cats are only distantly related to lions. They're much more closely related to cheetahs. And while pumas are often found in mountains, they're just as at home in the lowlands, dense forests, or deserts.
2019 • Nature
Like most big cats, the leopard is a master of secrecy. It's one of the hardest of all big cats to see, let alone observe. This is mainly because leopards need absolute invisibility to hunt. This is why they're such good climbers and why they evolved to be so incredibly secretive.
2019 • Nature
Cheetahs are not your standard big cats, they differ from the others in many ways. First, cheetahs are daytime hunters with eyesight optimized for open landscape and distant prey. Second, They're possibly the fastest land animals that have ever lived.
2019 • Nature
David Attenborough narrates this documentary about the giant squid, a creature of legend and myth which even in the 21st century, has rarely been seen in it's natural environment. But now, an international team of scientists think they have finally found their lair, one thousand metres down, off the coast of Japan. This is the culmination of decades of research. The team deploys underwater robots and state of the art submersible vessels for a world first - to find and film the impossible.
Chris and Martha discover which of our tagged bees have survived over the midsummer week - a frenetic nectar and pollen gathering period - and if they have collected enough food at this critical time to see them through the winter. With the help of Prof Adam Hart they will also explore the queen's remarkably deadly mating ritual and look at how bees can help us medically and how we can help them.
In the wild North Atlantic, massive whale pods, giant turtles and monstrous jellyfish ride the Gulf Stream, a huge ocean current that becomes a migration superhighway and helps warm northern Europe. Meanwhile, fishermen battle for survival in mountainous seas as they try to reap the current's natural fertility.
The Orange River travels almost two-thirds the length of South Africa to reach its most scenic checkpoint: The mighty Augrabies Falls. Widely regarded as one of the six great waterfalls on Earth, it is also an interminable source of hydration and food for the wildlife that live near its waters.
Biologists teach that all living things on Earth are related. Is there any solid evidence to back this claim? Join us as we explore the facts! We start with a close look at the origin of whales from land mammals, and then touch on the origins of several other critters, including our own species.