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: ...

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 ...

New research uncovers a hybrid visual cell in deep-sea fish, challenging the traditional rod-cone dichotomy in vertebrates. These cells, discovered in larvae of certain Red Sea fish, mix the ...

Recent studies challenge long-standing beliefs about vertebrate vision with the discovery of a novel visual system in deep-sea fish, while a groundbreaking fossil find in Niger reveals a remarkable ...

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

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

"Our results challenge the longstanding idea that rods and cones are two fixed, clearly separated cell types. Instead, we ...

Two species of small, deep-dwelling fish called pearlsides possess eye cells that break the rules of vertebrate vision, combining features of rods and cones into a single hybrid photoreceptor never ...

Deep-sea videos from around the world show how the whipnose anglerfish prefers to swim belly up. By Elizabeth Anne Brown Usually, a belly-up fish isn’t long for this world. But video evidence from the ...