But for many years there also have been rumors that fishermen were killing dolphins on the high seas to use as bait for the mako, blue and hammerhead shark fisheries—fisheries that expanded greatly in ...

Marine experts have given up hope of rescuing 157 false killer whales that stranded on a remote Australian beach.

The brains of white sharks are big, by fish standards, although considerably smaller than those of dolphins. They are smooth on the surface and knobby, roughly the size and shape of three Ping ...

A shark only just formally discovered might already be extinct - a fate no shark has yet suffered in the human era - while an Amazon river dolphin has become endangered, a Red List of species in ...