The rare Risso's dolphin makes its first appearance in the area since January.
The area is a source of food in the vast expanse of the ocean and a spawning ground for tuna, shark, marlin and swordfish.
Drone footage captures man and marine mammal in a peaceful encounter in waters off Australia.
The country plans to cordon off a South Pacific reserve the size of France.
A mother and her child glide past a tour company's cameras.
A parks and wildlife ranger catches the little seen marine mammal at play.
A photographer captured two unusual sights: a seal riding a whale and a pod of whales using a bubble-net feeding technique in warm waters.
The court settlement, approved by a federal judge in Hawaii, concerns navy activity off the coast of southern California and Hawaii.
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