Evidence shows that the Sargasso Sea is a spawning ground of European and North American eels.
It was big, it was bad and it could crush a turtle's shell with its jaws - meet Machimosaurus rex, the largest-ever marine crocodile.
Discover the truth behind the myth.
K9 Killer has been awarded a PDSA Gold Medal for helping to arrest 115 African rhino hunters in Kruger National Park.
Adélie and gentoo penguins reach an accommodation over food resources.
Knowledge passed down from adult whooping cranes to their offspring can cause harm to their young.
Hundreds of the small birds have been reported by members of the public along the Scottish east coast.
Actress Lesley Nicol has been on a mission to help publicise the work of saving moon bears from bear bile farms.
Researcher and medical doctor Ben Burville hopes to use 2016 to prove that one of Britain's forgotten marine mammals has a resident population off the coast of Northumbria.
Proposals to eliminate shark finning in the Atlantic gain support.