World's largest insect faces extinction: How to save two species of Africa's giant Goliath beetle

One of Africa's giant beetles is just one step away from extinction. New research has found that one species of the enormous Goliath beetles has been almost wiped out by the west African cocoa industry and, to a lesser extent, by the international trade in dried insects. Luca Luiselli, a professor of biostatistics and ecology at the University of Lomé (Togo), has researched threatened species in African forests for 30 years. He explains what has gone wrong and how the Goliath beetle could be saved.