Life in the deep ocean evolves under crushing pressure, scarce food, cold water, and darkness that sunlight never reaches.

Add Yahoo as a preferred source to see more of our stories on Google. Stunning underwater footage has captured an eerie, alien-like sea creature gracefully swimming beneath thick Arctic ice. The ...

'Velella velella are deep blue or purple in colour and often cause confusion if they wash in, in vast numbers, creating a ...

More stunning Velella Velella have been found on a beach in Cumbria, but marine experts have told people to look and not ...

Singapore: This bizarre-looking 'alien' creature was caught by a deep sea fisherman in Singapore. Ong Han Boon, 54, was at his favourite fishing spot on the island of Sentosa where he cast his line ...

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 ...

When camouflage fails and escape is impossible, the sea cucumber pulls off a survival trick so extreme it seems like certain ...

The deadliest sea creature doesn’t have rows of teeth or crushing jaws. It’s a near-invisible ghost, with a glassy body and whisper-thin tentacles. Look too quickly, and you might miss any given ...

This colourful creature is no alien, but it is a long way from home. For the first time, the presence of a type of tropical sea slug has been confirmed by scientists in UK waters. Spurilla neapolitana ...