For more than 60 years, the ginkgo-toothed beaked whale (Mesoplodon ginkgodens) was one of the ocean’s greatest mysteries.

Deep below sunlight, a rarely seen frilled shark reveals ancient anatomy, slow reproduction, and mysterious habits, offering ...

Far below the ocean’s surface, where sunlight disappears and pressure reaches crushing levels, some of the planet’s strangest ...

The Caribbean Sea is often associated with crystal-clear water, vibrant coral reefs, and post-card perfect beaches. But ...

Giant phantom jelly sightings are extremely rare, but recent footage shows this extraordinary deep-sea jellyfish in all its ...

Eerie yet fascinating footage shows the 10-metre-long sea creature gently pulsing and swirling its way through the dark ...

These "total monsters of fishes" are extinct today, though new clues about their lives come from CT scans and their closest ...

According to new research recently published in the journal Nature Communications, the Greenland shark retained its visual ...

Deep sea holds alien-like species. The frilled shark, a living fossil, remains a mystery. Its unique anatomy includes six ...

Killing the protected animals may be the only way to stop them from eating too many of the Pacific Northwest’s endangered ...

Quick Take Connecticut chose the sperm whale in 1975 to honor its pivotal 19th-century whaling industry and maritime heritage ...

Animals have evolved to sleep in extreme ways — for example, taking micro naps during parenting, sleeping on the wing during ...