Fraser's dolphins are seen in the South China Sea, July 20, 2020.(Photo: Xinhua)

 

Photo taken on Sept. 28, 2021 shows a clownfish and sea anemone in the waters of Fenjiezhou Island of Hainan Province, south China.(Photo: Xinhua)

 

A lionfish (pterois volitans) swims in the waters of Fenjiezhou Island of Hainan Province, south China, Sept. 29, 2021.(Photo: Xinhua)

 

Olive ridley sea turtle hatchlings crawl their way to the water during sunrise at the Sea Turtle Hatchery Facility in Cavite Province, the Philippines on March 1, 2022.(Photo: Xinhua)

 
The ocean covers over 70% of the planet. It is our life source, supporting humanity's sustenance and that of every other organism on earth.

Wednesday marks this year's World Oceans Day with the theme of "Revitalization: collective action for the ocean".

The purpose of the Day is to inform the public of the impact of human actions on the ocean, develop a worldwide movement of citizens for the ocean, and mobilize and unite the world's population on a project for the sustainable management of the world's oceans.