This alien-looking sea creature survives by stealing venom, toxins, and even live stinging cells from dangerous prey before ...

The vast majority of our planet remains a complete mystery, hidden beneath miles of crushing water where sunlight never penetrates. In this eternal darkness, evolution has taken a path so bizarre that ...

Lovingly nicknamed “sea gooseberry,” it glides through waters like a squishy crystal or a blimpy iridescent water balloon. It has been observed in deep ocean trenches and coastal waters across the ...

The jellyfish-type creatures travel the ocean via clear "sails." ...

They are iridescent, bright blue and jellylike, with stinging tentacles that dangle from their flat, oval-shaped bodies. Just 3 to 4 inches long, these alien-looking creatures use a short, clear flap ...

Centuries before modern science could more accurately explain the natural world, brief animal sightings often inspired ...