The enigmatic "cenotes" of Mexico's Yucatán peninsula
Some of these sinkholes may have been formed by the impact of a meteorite around 65 million years ago. Here are the "cenotes" of Mexico's Yucatán peninsula.
She believes we can help thge Earth through "symbiotic economy"
How would the Earth look like if all the ice melted?
The Kilauea volcano is only one of 169 active volcanoes in the USA
This is an environmental success story
This is what happens to used contact lenses
All these animals are threatened by humans