The vast array of organisms in the deep sea remains a mystery to humans. Now, marine biologists can add one more puzzle to the list. A collection of odd materials was discovered nearly four miles ...

When you think of great swimmers, animals like dolphins, fish, or penguins probably come to mind. But the animal kingdom is full of surprises, and many creatures you’d never expect to navigate well ...

"Swim towards the cliffs, stay within a few metres of the coastline, and we'll meet at the natural archway above the sea, about a kilometre along. It's beautiful - you can't miss it! That's halfway to ...