This is the moment a pair of sharks approach a paddle boarder in the shallow waters just off the beach. The great hammerhead and a bull shark can be seen off the coast of Florida, USA. The footage was ...

"For any animal that uses gills for respiration in the water, gills are like giant radiators strapped ... This video spotted a hammerhead shark swimming during a deep dive off the coast of Tanzania.

These majestic sharks gather in their hundreds at huge volcanic seamounts that project out of the seabed. They come here to be cleaned and to find a mate, circling the seamount in a sort of ...