Somewhere in the ocean's depths swims a small fish with a see-through skull, tubular eyes, and visual tricks that break every rule biology textbooks lay down about how vertebrates see.

A searobin 'walks' on the seafloor, using modified fin-ray appendages. (NOAA Office of Ocean Exploration and Research) The ...

Explore 25 deep sea discoveries that reveal Earth's most alien ecosystems. From chemosynthetic vents to transparent-headed ...

Add Yahoo as a preferred source to see more of our stories on Google. The ocean is packed with mysteries, some more horrifying than others. In recent times, a few nightmare-fuelled beasties have been ...

To survive the deep ocean, sea creatures have all kinds of adaptations that give them alien-like appearances, such as huge eyes and needle-like teeth.

Discover 16 fascinating facts about deep-sea creatures and how they survive, from the anglerfish to the transparent barreleye ...