A sea monster with teeth so sharp they formed a "saw-like blade," swam in the waters of what is now Morocco about 66 million years ago, a new study finds. Miners discovered the remains of this ...

“Shark teeth, despite being composed of highly mineralized phosphates, are still vulnerable to corrosion under future ocean ...

A biologist at Scripps Institution of Oceanography has found that elephant seals take multiple 10-minute naps during their nearly 10-month foraging trips out to sea. Like us, elephant seals need to ...

Online viewers were flabbergasted over a ghastly-looking sea creature washed up on a beach in California, as depicted in a Reddit post making waves online. “It’s giving me nightmares,” read the post ...

All teeth evolved from a single ancient sea predator, according to a new study. The study explains how certain species evolved to grow teeth by pinpointing their likely origin in an armored ray that ...

Shortly before a mass extinction ended the Age of Dinosaurs, a reptilian, barracuda-like carnivore with a mouth like a box cutter patrolled the warm seas that once covered swaths of what is now North ...

A striking deep-sea shark with protruding teeth and large eyes has been caught by a fisherman in Australia, prompting discussion over what species the mysterious animal belongs to. On September 12, ...