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

Far below the reach of sunlight, a strange predator drifts through the water like a living ghost train, its body stretching for tens of meters while millions of tiny mouths wait for something to ...

The Portuguese man o’ war is one of the ocean’s strangest creatures, and its danger comes from what it really is, not what it ...

The Abdopus octopus is found in intertidal zones along the Northern Australian coastline. Rather than being restricted to ...

Sea creatures have adapted to help them thrive in extreme environments. Unusual features allow them to live thousands of feet below the surface. Underwater robots give researchers a glimpse at some of ...

The ocean is home to some of the creepiest animals out there. It feels like the deeper you go in the water, the stranger and ...

The ocean is one of Earth’s greatest mysteries, with miles of unexplored terrain that scientists are still trying to uncover. With advancements in technology, scientists have unearthed three new ...

The anemone is part of a new species, genus and family, according to the study. Photo by Yanghong Yu via Unsplash A “strange” creature recorded in the deep waters off the coast of Japan represents an ...

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 ...