Researchers believe they may have worked out why giant trevally swim upstream in the Mtentu Estuary and circle in vast ...

During a dive off Argentina, scientists documented a rare jellyfish discovered a little over a century ago and seldom seen since, as well as the fish that keep it company.

Add Yahoo as a preferred source to see more of our stories on Google. Long before whales dominated the oceans, Earth’s seas were home to a fish so massive it continues to challenge our understanding ...

Fishing duo Cole and Jay lose their boat but catch a giant fish anyway.