Glittery sea worms and sea squirts fit for The Lord of the Rings universe might sound like pure fantasy, but they’re very real creatures living in the deep sea. Some of these otherworldly ocean ...

A new species of Amazonian fish, Pyrrhulina punctata, has been discovered in Peru, revealing previously unknown biodiversity ...

Emperor cichlids, large fish native to Lake Tanganyika in Africa, don't like being stared at, especially if someone's gaze is directed at their offspring. Those are the findings of a new study ...

Reaching over 30 feet long, the mysterious giant oarfish is the real-life "sea serpent" behind centuries of myths and legends ...

Fish may possess the ability to perceive where another being’s attention is focused. And they don’t like when it’s focused on them or on their children ...

These fish are all perfect for recreating a stunning coral reef in your lounge.

The tiny Amazon molly (Poecilia formosa) has always fascinated researchers because, according to the rules of evolution, it shouldn't have survived as a species, let alone thrive as a species for over ...