Rangiroa is a laid-back island paradise full of underwater wonders, including abundant sharks. It's the largest coral atoll ...

Researchers believe they have found the biggest male great white shark ever recorded in the Atlantic Ocean, which has already ...

The blue shark is a carnivorous fish that lives in ... and which uses gills to breathe underwater. Freshwater – Water which is found in lakes, ponds, rivers and streams. Gills – An organ ...

Plunge into this deep blue hole and you'll discover ... but it's unlikely you'll encounter many underwater creatures (expect the occasional shark!). Even if you're not a diver, recent visitors ...