One fifth of world's reptiles endangered, says report

Almost one in five of the world's reptile species is threatened with extinction, a report from the Zoological Society of London (ZSL) warns.

Report names 100 most endangered species

You've probably never seen Tarzan’s chameleon, the Seychelles sheath-tailed bat or the pygmy three-toed sloth - and the chances are you never will.

Database lists endangered languages

The World Oral Literature Project (WOLP) has taken a leaf out of the biologists' book, and launched an online database of the world's disappearing languages.