The ocean is still one of the biggest mysteries on Earth, and the deeper you go, the stranger it gets. Far below the surface, where sunlight can’t reach, lives a world full of creatures that look more ...

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

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 ...

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 ...

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 ...

Everything really is bigger — and stranger — in Texas. This year proved the Lone Star State is full of wild surprises after several Texans spotted some rare and unusual encounters with sea creatures ...

A walk along the beach can be full of surprises. From colourful shells and seaweed to strange-looking marine animals, there's ...

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 ...

Photographer Ian Haggerty stumbled across the bizarre-looking sea cucumber while exploring a reef.