Maya Gabeira: showing her eco-friendly smile | Photo: Oceana/BrianBielmann

Big wave surfer Maya Gabeira is supporting Oceana, the largest international ocean conservation organization.

The Brazilian charger will patronize the opening of Oceana's new office in her country, with a new public service announcement in which she invites everyone to "help the oceans catch a break."

"I started surfing when I was 14. I've spent a lot of time in the ocean since then. I get to share that environment with all the animals - turtles, sharks, fish, everything that lives there. It's crazy not to protect it. Let's help the oceans catch a break," says Gabeira.

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Oceans: 90% is still unmapped

The World Oceans Day is celebrated on the 8th June. What should we know about the body of saline water that covers two-thirds of the planet's surface?

Earth is the only planet that is known to have large stable bodies of liquid water on its surface. Oceans generate most of the oxygen we breathe, and they regulate our climate.

Oceans clean the water we drink and offer a pharmacopoeia of potential medicines. The Pacific, Atlantic, Indian, Southern (Antarctic), and Arctic Oceans cover approximately 72% of the planet's surface.

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Great white shark: there are canibals in the family

Scientists have solved the mystery of the nine-foot (2.7 meters) great white shark eaten by a super predator, in Australia's Southern Ocean.

When researchers GPS-tagged a great white, they didn't imagine what would happen two months later. The device was found on a beach, and its data revealed that the animal had suddenly plunged 1,900 feet deep into the ocean.

The tag also showed multiple, drastic temperature changes indicating that the shark had been inside a digestive system. What animal could eat a nine-foot great white shark?

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