Researchers run seawater through the mouth and gills of a captured tiger shark to keep it alive as they tag the animal and gather ultrasound images and other data from it. Scientists usually ...

Seeing someone fishing isn’t exactly a rare sight in Northeast Florida, but video of a Jacksonville man who caught a tiger shark ... get,” he wrote. The shark’s gills were not submerged ...

"In a situation where you don't have that, going for the face and the gills and trying to ... two or three or four metre white shark or a three or four metre tiger shark... There's no chance ...

Scientists have stumbled upon a Greenland shark—a species known for its astonishing longevity—far from its typical Arctic ...

And they have five, six, or seven gill slits per side ... while probing the uterus of a pregnant sand tiger shark, was bitten by an unborn pup. The strongest shark bite: The greatest force ...