The male big cat's death is 'extremely dangerous' for the species, warns an expert.

Kitten is one of the world’s rarest big cats, with only 91 known adults surviving in the wild.

Proof that lions roamed northern Siberia in the age of the mammoths and woolly rhinoceros.

Less-than-lissom lions have been fed on junk food in captivity, says expert.

The Russian president took part in the 'Flight of Hope', giving a flying lesson to young white cranes ahead of their epic 5,000 km migration.

Up to 500 mother bears a year give birth on remote Wrangel island, also the last place to see woolly mammoths.

Stranded on Teletskoye Lake in the Altai Mountains, bird's only hope of survival is to be caught and put in a zoo.

Worried about the rapid destruction of permafrost from global warming? Here's how you can counter it by restoring the woolly mammoth habitat.

More than 20 calves born although park keepers say there could be more.