A leopard gecko. Credit: Timothy Higham

Why Do Geckos Need Tails?

When leopard geckos walk on the desert sands of Gujarat and Rajasthan, their fat tails swing from side to side without touching the ground. If they lose their tails, do they change the way they walk?

Children drink from a tap during recess at a UNICEF supported primary school inside Bukasi internally displaced people's camp, in Maiduguri, Borno state, Nigeria. Credit: UNICEF

World Hunger Is on the Rise Again

A UN report it reveals that in 2016 the number of chronically undernourished people in the world is estimated to have increased to 815 million, up from 777 million in 2015, although still down from about 900 million in 2000.