Shark may avoid cold blood by holding its breath on deep dives

Scalloped hammerhead sharks stay warm as they descend into cold, deep water off the coast of Hawaii, suggesting the cold-blooded species may maintain its body temperature on dives by holding its breath, according to new research ...

Overfishing risks ocean deserts as stocks plummet

With bigger boats, deeper nets and better sonar than ever before, the fishing industry's response to our insatiable appetite for fish risks transforming much of the world's oceans into aquatic desert.

Climate change will redistribute tuna

The increase in skipjack and yellowfin tuna in the tropical area, and the movement of the rest of the species (albacore, Atlantic bluefin tuna, bigeye tuna and southern bluefin tuna) towards colder waters are the main conclusions ...

Bluefin tuna are back around the UK and a new study explains why

Bluefin tuna are back in the sea around the U.K. after decades of absence and a new study says that warming seas can explain why. Bluefin tuna are one of the biggest, most valuable and most endangered fish in the oceans. ...

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