'Thousands and thousands' of these curious creatures have been showing up on the Texas shoreline, expert says. What are they?

In July and August scientists onboard the Schmidt Ocean Institute’s research vessel Falkor (too) spotted the oddities through the eyes of an underwater robot as they explored the Mar del Plata Canyon.

Scientists from the California Academy of Sciences described 72 new species last year, from elegant birds to strange sea ...

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

Scientists are a little closer to understanding what goes on deep beneath the surface of our oceans.

The knotty sea spider, Pycnogonum litorale, is not actually a spider, but it does represent a significant early branch in the genetic family tree that includes spiders, as well as scorpions, ticks and ...

Text and pop-up illustrations depict sea animals such as the hermit crab, moray eel, and octopus.