In 1912, the largest volcano eruption of the 20th century laid waste to one of the most pristine corners of Alaska. Today, the Valley of 10,000 Smokes has become a home to one of the largest bear populations in the world.
In the first episode and for the first time ever, the programme compares the humble moggy with their big cat cousins, gaining surprising insights into the entire cat family. In Africa, lion whisperer Kevin Richardson proves how similar domestic pets are to the fearsome big cats and why there's more to feline communication than meets the eye. In the thick jungles of South East Asia, the series discovers which sabre-tooth wild cat has given tabbies their gravity defying climbing skills and in Namibia, shows how a strange looking cat called a caracal has given them the ability to jump over three metres and catch birds in flight, inspiring the phrase "put the cat amongst the pigeons". To truly understand the world’s most beloved purring pets, there needs to be an understanding of their wild relatives.
Begins in northern Norway, 500 kilometres north of the Arctic Circle. Here, there is only just enough light for the pine trees to survive, but it is extremely cold during the winter. Pine cone seeds provide one of the few foods available at this time of year, and large herbivores such as the moose must also rely on their fat reserves.
Reconstructing a dinosaur skeleton for a museum is a balance between art and science - but getting that balance right is a tricky diplomatic, as well as scientific, process. Presenter and anatomist Dr. Alice Roberts follows the reconstruction of L.A.'s Natural History Museum's 2011 dinosaur exhibit.
2011 • Nature
In Ruaha, Tanzania, lions form huge super prides in order to hunt giants. Amongst cats lions are unusual, the only one to live in groups. In numbers they find the strength and audacity to hunt the most formidable prey. In Sri Lanka a tiny rusty-spotted cat explores his forest home - 200 times smaller than a lion, the rusty-spotted is the smallest of all cats, but just as curious. The Canada lynx lives further north than any cat, relying on snowshoe hares to survive the bitterly cold winters. Until now, lynx were creatures of mystery, but now technology provides an insight into their secret lives.