The picture and the exact location of the world's oldest tree are not revealed for safety purposes.
April 22, celebrated as Earth Day, saw various events that were held to mark the day.
Polar bears now have to swim great distances hunt due to melting of ice caps
Leaders from 175 countries have signed the Paris agreement on climate change at the United Nations in New York City.
Researchers have revealed a new theory for the survival of birds after asteroid strike 66 million years ago.
Animals are still thriving in areas near the Chernobyl -- impact of radiation may not have affected them as much as it did to humans.
A great white shark was spotted leaping out of water at Sunset Beach by a California surfer.
The American Lung Association's State of the Air 2016 report reveals that California has the dirtiest air in the U.S.
A recent study reveals that Americans are not too bothered about climate change because of their preference for the resulting warm weather.
Although there are more positive effects of going vegetarian, one can't help but think about how it will affect the people who make a living raising livestock.
Scientists say that half of the natural wonder of Great Barrier Reef is dead or dying.
The discovery of a complete fossilized heart in a prehistoric fish is good news for researchers.
