Animals that migrate: Every year, as the days shorten and the temperature drops, billions of animals that migrate embark on one of nature's greatest spectacles: the winter migration. This massive ...

Hollywood has always been a world filled with stars, but some of the industry's most memorable stars never walked the red carpet on two legs. For more than a century, filmmakers have relied on ...

When Dolly the sheep – the first cloned mammal – was born 30 years ago, she became one of the most famous animals in science history. Her arrival sparked predictions of a sci-fi future filled with ...