This article originally published at 'Mass die off': Thousands of rare sea creatures wash up on Texas coast.

Along long stretches of the Texas shoreline, thousands of rare sea creatures have been turning up dead or dying, transforming ...

Far below the ocean’s surface, where sunlight disappears and pressure reaches crushing levels, some of the planet’s strangest ...

The ocean is home to some of the most mysterious creatures on Earth. Many of us are familiar with the common sea animals like dolphins, sharks, and turtles, but there are also rare and unusual ...

Like a scene out of a Jules Verne novel, scientists from Schmidt Ocean Institute recently encountered a giant phantom jelly ...

When Ted Judah goes scuba diving off the coast in Monterey Bay, he normally swims at the surface to the area above the dive ...

The use of cameras by wildlife authorities is one of the best ways to document wildlife sightings, particularly of rarely ...

A manatee was one of the latest in a long line of rare marine animals to turn heads along the Texas coast last month, and — in this case — hold up a $64 million state construction project. One of the ...

Wondering about the world's weirdest sea creatures? We've compiled this list of the 20 weirdest animals in the ocean to show ...

Boaters recently spotted a group of Risso’s dolphins off the coast of South Africa — a “rare” sight for the area, according to a local tour company. Photo from Doug Bagg, UnSplash Boaters off the ...