An estimated one million plant and animal species are on the brink of extinction, with only 1.5 million of the world's estimated 8.7 million species currently identified

Dozens of species unknown to science have been recorded by a survey of the Lisima plateau in Angola’s highlands.

Wildlife experts found eight new species of dragonfly, three unknown grasshoppers and some 60 new butterflies and moths in vivid hues during a trip to Angola's Lisima plateau.