The 248-million-year-old fossil belongs to a group of mysterious early Triassic marine reptiles.
We pooled our favorite images from NOAA this year, showing off 12 shots of raging seas, marine life and other surprising underwater finds.
The harlequin filefish smells like coral instead of dinner to things that would like to eat it.
More than 1,000 mutilated marine mammals thought to have been victimized by humans were attacked by another marine mammal with a cuddly reputation.
Australia said Monday it was hopeful of winning support for its plan to create a vast marine reserve off Antarctica, after revising the proposal to make it smaller.
Orcas that have been socialized with dolphins mimic the sounds they make.
See mind-blowing pictures from the Okeanos Explorer, a mission that's been exploring the seamounts off the New England coast.
Handful of swimmers ferried to shore after being corralled and slapped by the large adult mammal.
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