While operating the deep-sea robot nearly 7,000 feet below the surface, the machine’s camera captured a creature that ...

Rare evidence about the lives of an ancient group of arthropods has been uncovered in the U.S. The findings of the study are ...

These ancient marine arthropods lived in the world's oceans from 521 million to 252 million years ago. We know a great deal about the diversity, lifestyles and evolution of these iconic ...

These familiar marine arthropods first arose about 545 million years ago in the early Cambrian and thrived throughout the world's oceans until they were wiped out in the Permian extinctions about ...

With over 1,300 species living in every ocean, these marine arthropods can have a leg span ranging from .04 inches to nearly three feet long. The video above was filmed by ocean explorers at the ...

Horseshoe crabs are marine arthropods that live primarily in and around shallow ocean waters on soft sandy or muddy bottoms. They occasionally come onto shore to mate. They are commonly used as ...

or sea scorpions. Some species grew to more than six feet (two meters) in length and are considered the largest arthropods ever to have lived. Bearing a resemblance to their scorpion descendents ...

Pyconogonids, commonly called sea spiders, are marine arthropods that have eight legs and a long mouthpart called a proboscis, according to the Monterey Bay Aquarium. The animal’s organs are ...