A fossilized brain from a 500-million-year-old sea creature shows unexpected spider-like features, hinting that spiders and their kin may have evolved in the ocean—not on land.

They’ve been crawling across the seafloor for more than 500 million years – predating the dinosaurs – yet sea stars remain some of the most misunderstood animals on Earth – if they’re even recognized ...

Serrations at the edges of a fossilized flipper of the ancient marine reptile Temnodontosaurussuggests it may have been able to swim silently.

It uses bioluminescence for counter-illumination to mask its silhouette from predators and feeds on small marine organisms like shrimp. This squid is a model organism for studying animal-bacterial ...

New body size database for marine animals is a “library of life” Marine Organizational Body Size (MOBS) database fills a crucial gap in understanding ocean biodiversity.

The Maryland Department of Natural Resources (DNR) says the state is experiencing higher-than-average numbers of marine animal strandings compared to previous years.

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Further outbreaks are still possible before the year is up, said Dave Bader, a marine biologist and the chief operations and education officer for the Marine Mammal Care Center in San Pedro.

PANAMA CITY BEACH, Fla. (WMBB) – Another dolphin has died at a Florida marine park, state Sen. Jay Trumbull confirmed Wednesday on social media. In a post on his Facebook page, Trumbull (R ...

PETA thanked the Trump administration for banning Navy-funded dog and cat experiments and urged a broader ban on all animal testing across military branches.