This bizarre-looking fish may seem otherworldly, but every part of its design solves a real problem: how to see, hunt and ...

After decades of eluding human detection, a deep-sea fish with a transparent skull has finally been captured on camera. This remarkable creature offers fresh insights into the unique biology of ...

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 ...

WASHINGTON — For more than a century, biology textbooks have stated that vision among vertebrates - people included - is built from two clearly defined cell types: rods for processing dim light and ...

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 ...