Story highlights There's been a 79% decrease in whale sharks spotted in waters off southeast MozambiqueClimate change and unsustainable fishing methods are main factors in this declineLocals fishermen, scientists and conservationists are working together to intervene. But lurking below the whale shark -- the largest fish in the world -- is no threat to these fishermen; nor they to it. The waters off southeast Mozambique are home to whale sharks, manta rays and a bounty of marine mega fauna. Manta ray sightings are down 88% in the last 10 years, and there's been a 79% decrease in whale sharks spotted. However a band of locals, scientists and conservationists are stepping in to stave off this decline.

Source: CNN August 17, 2016 10:07 UTC