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 ...

Meet the “ghost fish,” a phantom of the abyss. Here’s how we found the first ever proof of its existence just a few years ago. The deep sea is a part of the world that very few humans get the chance ...

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.

Scientists have uncovered why big predators like sharks spend so much time in the ocean’s twilight zone. The answer lies with mid-sized fish such as the bigscale pomfret, which live deep during the ...