Contentedly full from its last meal, a mysterious sea creature swam through the royal blue depths off the coast of Costa Rica. Twirling and spiraling, the misshapen animal moved in a mesmerizing way.

This Indo-Pacific stunner dons a kaleidoscope shell of greens, blues, reds, and oranges, with purple eyes that swivel independently. At 3-18 cm long, it packs a punch like a .22 bullet using club-like ...

The deep sea also harbours some of the most intriguing and alien-like species in existence, yet for several centuries, these creatures have continued to evade discovery by humans. One such intriguing ...

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 ...

Scientists call it a siphonophore Apolemia, but you can call it the world’s longest “long stringy stingy thingy,” the giant alien tentacle or just “the entity.” An international team of ocean ...