This story appears in the July 2016 issue of National Geographic magazine. If a zebra zigs, will its stripes make a predator zag? That’s the idea behind motion dazzle, a century-old hypothesis ...

This Texas lake has been infested by an invasive mussel that spells nothing but disaster for the local aquatic ecosystem.

On 31 January, people around the world will be marking International Zebra Day ... in little or no production of a pigment called melanin - which causes them to develop golden stripes.