The ‘megafish’ living in southeast Asia’s Mekong River once faced extinction. A new rapid response system is helping reverse ...

The scientist outstretches his arm as he rushes toward the largest fish in the sea. He keeps a white-knuckle grip on his camera, his dive fins thrashing, propelled by what he knows is a razor-thin ...

Add Yahoo as a preferred source to see more of our stories on Google. Alessandro Biancardi with the pending world-record Wels catfish. Although it's hard to say for sure, this is likely the biggest ...

From river giants to land-dwelling beasts, these are the biggest creatures walking, swimming and flying across our planet ...

The vast oceans of Earth house some of the most spectacular, awe-inspiring giants of the natural world. Far from mere ...