Related topics: fish

Bluefin tuna reveal global ocean patterns of mercury pollution

Bluefin tuna, a long-lived migratory species that accumulates mercury as it ages, can be used as a global barometer of the heavy metal and the risk posed to ocean life and human health, according to a study by Rutgers and ...

Biggest fish in the ocean receives international protection

Whale sharks are among the largest living fish in the world - weighing up to 40,000 pounds and 40 feet in length. They are also so docile that humans often swim with them without concern, snapping photographs of their incredible ...

How tuna stay warm with cold hearts

Scientists at The University of Manchester, working with colleagues at Stanford University in America, have discovered how prized bluefin tuna keep their hearts pumping during temperature changes that would stop a human heart. ...

Fish evolve by playing it safe

New research supports the creation of more marine reserves in the world's oceans because, the authors say, fish can evolve to be more cautious and stay away from fishing nets.

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