About 252 million years ago more than 80% of marine species became extinct ... appearance of animals, more than 555 million years ago. It seems that the prime culprit was the massive amount of warming ...

Like other species of wrasse, it changes in both sex and appearance as it gets older ... Data made possible by NASA’s Magellan spacecraft has revealed an active volcano on the surface of Venus, a ...

Extinct volcanoes are located at the corners of this triangle ... Statues made of volcanic tuff are called Moai. They have the appearance of a human head with a torso that is truncated to about waist ...

Fifteen million years ago, now-extinct species of dolphins, whales and large sea cows roamed the world’s oceans, topping the underwater food chain. Yet back then, any one of these creatures ...

HONOLULU (AP) — Lava began bubbling out of Hawaii’s most active volcano once again on Tuesday as Kilauea’s sporadic eruption resumed. The eruption restarted at midday when when molten rock ...

Credit: @ Didier Marti/Getty Images A series of relatively young underwater volcanoes has been discovered under the waves of the Pacific Ocean, some of which may even be active. The volcanoes were ...

Lava began bubbling out of Hawaii’s most active volcano once again on Tuesday as Kilauea's sporadic eruption resumed.The eruption restarted at midday when when molten rock began pouring out of a ...

HONOLULU — Lava began bubbling out of Hawaii’s most active volcano once again on Tuesday as Kilauea’s sporadic eruption resumed. The eruption restarted at midday when when molten rock began ...

Scientists monitoring Alaska’s Mount Spurr said seismic activity continues to rise, indicating that the volcano is moving toward an eruption. The major risk of a Mount Spurr eruption is ashfall ...

As the Kilauea volcano in Hawaii erupted again last week, lava was captured spinning into the air like a dust devil, creating a "lavanado." Stunning video footage captured by Scott Malis on Feb ...

Mars is also a dynamic planet with seasons, polar ice caps, canyons, extinct volcanoes, and evidence that it was even more active in the past. It is one of the most explored planets in the solar ...