Giant mosasaurs, once thought to be strictly ocean-dwelling predators, may have spent their final chapter prowling freshwater ...

Cephalopods—the class of animals that comprises octopuses and squids—are ubiquitous throughout the ocean, including in the ...

While modern octopuses have DNA that consistently gets reshuffled, resulting in some chromosomal mixing, the researchers ...

Ancient mariners' tales of the terrifying Kraken, a colossal sea monster, have been scientifically linked to the elusive ...

A new study reveals an unknown species of whiplash squid burying itself upside down in the deep sea — a first-of-its-kind ...

Perhaps it was hiding from predators. Or trying to catch food. Then again, maybe it just wanted to be left alone.

Size shapes the way animals move, hunt, and survive. For example, in the ocean, ginormous creatures rely on their massive ...

Invertebrates dominate the animal kingdom, making up 97 percent of all creatures. These animals, lacking a backbone, display ...

Explore the remarkable similarities and differences between sperm whales and giant squid, from size and behavior to diet and ...

Fossil reveals that a giant Jurassic ichthyosaur, Fossilized fin from a Temnodontosaurus, hunted using extreme stealth 183 million years ago.

An overview of the different camouflage components that the white oval squid, or shiro-ika, employ when assembling their camouflage strategy. A-D) are coloration patterns, E-M) are postures, I-M) are ...