A "strange" creature recorded in the deep waters off the coast of Japan represents an exceptionally rare kind of discovery.

At first glance, the lettuce sea slug (Elysia crispata) looks like a leafy underwater alien. But what’s hiding inside its ...

Animals Strange 'sea pigs,' sea spiders and a spawning 'butterfly' discovered on Antarctic ocean floor by scientists. Fish Scientists capture footage of bizarre deep-sea creature with parasite pig ...

The deep sea is home to weird and wonderful creatures that, over millions of years, have evolved specific traits to survive the extreme conditions of their habitat. Scientists define the deep sea ...

For me, the most fascinating part is the fact that such a group of animals managed to adapt to different habitats, which ...

To survive the deep ocean, sea creatures need all kinds of adaptations that give them alien-like appearances, like huge eyes and needle-like teeth. 15 bizarre creatures from the bottom of the ...

Q. I enjoy learning about bizarre animals like the terrestrial one you recently wrote about called a hammerhead worm. With all the strange animals found on land, the oceans must be full of even ...

Weird sea creature ‘balloons’ are washing up on North Carolina beaches - here’s what they are. Officials are issuing warnings for Portuguese man-of-war along a roughly 150-mile stretch from ...

Q. I enjoy learning about bizarre animals like the terrestrial one you recently wrote about called a hammerhead worm. With all the strange animals found on land, the oceans must ...

The deep sea is home to weird and wonderful creatures that, over millions of years, have evolved specific traits to survive the extreme conditions of their habitat. These adaptations to their ...

To survive the deep ocean, sea creatures need all kinds of adaptations that give them alien-like appearances, like huge eyes and needle-like teeth.

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 ...