The BBC's wildlife magazine, Discover Wildlife, is now featuring an online gallery of stunning photos by David Hall from Beneath Cold Seas, which is published this month.

Have a look at the gallery and see for yourself why Peter Rowlands of Underwater Photography Magazine calls these images "quite exceptional"; Discover calls the book "A stunning, wildly colorful marine world"; and Shelf Awareness says it's "A dazzling book filled with dazzling sea creatures, showing us an astonishing marine domain"!

Below: cover image: Blue rockfish & lion's mane jelly. The fish seems to be nibbling small particles adhering to the tentacles of the jelly.