By Will Dunham WASHINGTON, Feb 18 (Reuters) - For more than a century, biology textbooks have stated that vision among vertebrates - people included - is built from two clearly defined cell types: ...

A newly discovered visual cell in deep-sea fish larvae is reshaping long-held assumptions about how vertebrates see the world.

Some deep-sea fish may be able to see light in a different way from most other vertebrates, according to a new study. The ...

A deep-sea anglerfish was recently caught on camera in a rare moment, delighting social media users while scaring others. Condrik Tenerife, a Spanish conservation organization, and marine photographer ...

The deep sea is cold, dark and under immense pressure. Yet life has found a way to prevail there, in the form of some of Earth’s strangest creatures. Since deep-sea critters have adapted to near ...

Deep-sea fish larvae reveal hybrid photoreceptors that blend rods and cones, challenging traditional vision models and ...

Deep-sea fish have evolved ultra-black skin to absorb nearly all light, rendering them invisible to predators that use bioluminescence. This remarkable adaptation, where skin structures trap light ...

These three fish are freaks, phantoms and mysteries of the deep. Here’s what we’ve learned from the rare glimpses we’ve had of their lives. The deep sea is one of Earth’s final frontiers. Given its ...

A deep-sea anglerfish was recently spotted swimming in broad daylight in the Canary Islands. The sighting is rare as the fish typically stays in the depths of the ocean below the sunlight zone. It’s ...

Barreleye fish are named for their unique, barrel-shaped eyes. These eyes can rotate, allowing the fish to look both upward and straight ahead. Their eyes also have bright green lenses protected ...

Scientists have identified a new type of visual cell in deep-sea fish that blends the shape and form of rods with the ...