The winning entries have been announced in the annual Underwater Photographer of the Year competition. This year's contest drew from 4,500 entries submitted from photographers in 67 countries.
First prize went to France's Gabriel Barathieu for "Dancing Octopus," taken on Mayotte Island in the Indian Ocean. "I had to wait for a low spring tide when the water was just 30 centimeters deep (1 foot) so that the octopus would fill the water column," said Barathieu. "I got as close as possible with a wide angle lens to create this image, which makes the octopus look huge."
"Both balletic and malevolent, this image shows that the octopus means business as it hunts in a shallow lagoon," said contest judge Alex Mustard. "The way it moves is so different from any predator on land, this truly could be an alien from another world. A truly memorable creature, beautifully photographed."