Oceans cover 71 percent of the Earth's surface and make up more than 99 percent of the planet's livable habitat.
The moon contains the key requirements for life.
About 70 percent of the world is covered by oceans.
Around the world, one million plastic drinking bottles are purchased every minute. Up to five trillion disposable plastic bags are used every year.
Turtles face many hazards in the water, including plastic pollution and accidental harm or death in encounters with commercial fishermen.
Stonefish are native to coastal waters in the Indian and Pacific Oceans.
Researchers found that related beluga whales returned to the same locations every year and that this behavior was passed down from generation to generation, likely from mother to calf.
The volcanic region the produced Olympus Mons may also have been responsible for keeping Mars wet.
"I'm absolutely heartbroken."
A single gene is responsible for this extraordinary feat.
The world's oceans have absorbed around one-third of human-emitted carbon dioxide.
This dynamic duo is another deadly threat to coral reefs. But people can do something about it.
Even sites that won't be submerged could be damaged from rapid development.
Glitter is a menace on land and at sea.
The percentage could be greatly reduced if greenhouse gas emissions are reduced as well.
It's official: Plastic is utterly inescapable.