The dolphin pod is used to being visited by humans every day in Australia's Tin Can Bay.

A U.S. judge gave salvagers permission to cut into the Titanic in search of its iconic telegraph, despite outcry over disturbing the mass grave site.

The sabre-toothed anchovies grew up to one metre long and lived some 55 million years before pizza was invented.

The inch-long 'blue dragon' sea slug can sting harder than a Portuguese man-o-war.

A red tide by day is generating some spectacular waves at night, as plankton light up the water off California and Mexico.

The incredibly massive string jellyfish is thought to be well over 100 feet long.

"The potential loss of a mother is particularly devastating to North Atlantic right whales, which number about 400."

Jordan says the change is important because it will help track exactly where whale entanglements occur.

The move is expected to keep 225 million plastic bags out of circulation each year.

Underwater cameras around fjords have already yielded stunning images of soft corals and "forests" of sea anemones.