What are the tallest trees in the world? These 10 skyscraping superstars are some of the stalwart examples of their species.

Cetaceans, the infraorder of aquatic mammals consisting of whales, dolphins, and porpoises, are some of the most unique animals on earth, but they are also some of the most endangered. Cetaceans ...

Endangered turtles need our help. Learn about some of the incredible turtle species facing a serious risk of extinction.

Natural stone towers around the world inspire awe and wonder. From Uluru to El Capitan, here are 10 of the largest monoliths in the world.

Burning fossil fuels for motor vehicle transportation can release harmful pollutants into the atmosphere, but just how much air pollution comes from cars—and how exactly does it affect the ...

Even after nurturing and enchanting humans for thousands of years, the Nile River is full of surprises—and the longest river in the world.

What should you do when a wasp or hornet lands on you? Learn more about why wasps attack and how to avoid getting stung.

Friends and enemies in the animal world tend to be pretty clear-cut. But as these unlikely pairs show, even Mother Nature doesn't set things in stone.

When the water evaporates from Canada's Spotted Lake, mystical colored polka dots are left behind.

Explore tips, lists, and expert opinion on making your home and garden a safe and thriving eco-friendly haven.

Learn what business and industry are doing to take responsibility for their impact on the planet.

The list of endangered bird species is disturbingly long. Among some of the most endangered are these amazing, unique, and beautiful birds.