Allan Bogle put on his snorkelling gear to swim with dolphins in Portstewart Dolphins swimming alongside beachgoers and a thresher shark leaping out of the sea are among some of the unusual images ...

Despite a long-held belief by many surfers that seeing dolphins means there are no sharks in the area, Carlos Gauna, a man who spends much of his life filming both great white sharks and dolphins ...

They also sometimes eat each other: Dolphins feed on smaller shark species and large sharks are known to attack dolphins.

Insp Paul Robinson, from Western Australia Police, said it was possible the girl had jumped in the water to swim with dolphins seen ... to be the first fatal shark attack in the Swan River since ...

An international team of researchers spent six years studying the behaviour of 120 bluenose dolphins in Shark Bay, Western Australia ... agreements in which they fend off other groups trying to take ...