Douglas Main

A rare weather event called a temperature inversion has created a situation where the Grand Canyon has filled with fog, offering a stunning view.

Why do koalas have such low-pitched vocalizations? Based on the animal's size, they should have higher vocalizations. The answer lies in an odd fold in their vocal chords.

Lions in Botswana's Okavango Delta are amongst the largest in the world thanks to an abundance of prey as well as the many rivers -- walking through water builds up the big cats' muscles.

Male lions outnumber female lions several-fold. What happens to the rest of the lions, born in equal numbers to females? A new film answers that question.

Oncillas, a housecat-size feline that lives throughout Brazil, was once thought to be a single species, but new work shows that it is instead composed of two species.

A TV special from the hosts of the show 'Mythbusters' visits the 'Punkin Chunkin' world championship in Delaware to see how far pumpkins can be hurled.

Mushrooms do more than one might think to disperse their spores, "making wind" to spread their seed by evaporating their water.

A recent study found less plastic trash than expected. Where is it going? Some of it is likely being eaten by deep-sea lanternfish, researchers say.

Wild turkeys are found in 49 of 50 states, an enormous turnaround after having disappeared from much of the country early in the 1900s.

The United Nations projects there will be 11 billion people by 2100. Here's what that news means for the Earth's animals — and it's not good news.

Rising populations spell trouble for biodiversity. Here are 7 animals that humans are pushing toward extinction through hunting and habitat loss.

The U.S. Environmental Protection Agency will study a remote Hawaiian beach to see if it qualifies for listing as a Supferfund site, a type of hazardous waste site.

A number of "owl cafes" have popped up in Japan in the last year, a trend that has alarmed some environmentalists who point out that the birds make terrible pets.

The U.S. government is offering a $1 million reward to put an end to wildlife trafficking in Laos, a country in Southeast Asia involving in smuggling parts of endangered animals.

A Brooklyn-based prop-designer died while competing in a free-diving competition in the Bahamas this past weekend, according to news reports.

Researchers have found a two-headed ray in Australia, the first two-headed shark or ray found there.

A rare heart condition struck a healthy 20-year-old woman after she fell on a sandy beaching during a run. The condition jolted her heart into an arrhythmic pattern, and she died within 30 minutes.

A slew of tornadoes tore through the Midwest yesterday (Nov. 17). What factors were behind the outbreak of twisters?

After Super Typhoon Haiyan, the Philippines has been left in tatters, with thousands dead. Here are seven steps that can be taken to help the country recover from the storm.

Super typhoon Haiyan was significantly stronger than Hurricane Katrina, due to different atmospheric conditions in the western Pacific.

The word "huh?" and its equivalent appear to be universal across languages, according to a study that examined its use around the world.

A image that went viral yesterday suggested that Typhoon Haiyan was the size of the United States. The scale on the image was off, as the American Red Cross.