Earth's oceans could one day turn purple. Nearly three fourths of Earth is covered by oceans, making the planet look like a ...

The green turtle is a large, weighty sea turtle with a wide ... It is named not for the color of its shell, which is normally brown or olive depending on its habitat, but for the greenish color ...

It’s hard to picture now, but Earth’s deep blue oceans were once green. According to a new study by Japanese researchers, ...