Slow seasons, including this year's, are much higher than they were in decades past.

With 23 short essays on creatures ranging from the wombat to the spider, Katherine Rundell's new book is essential reading for anyone whose wonder could use a jumpstart.

Despite Donald Trump’s focus on fossil fuels, his return to the White House won’t derail clean energy, analysts and activists say.

Black-footed ferrets are one of the most endangered mammals in North America with only an estimated 370 in the wild, according to the World Wildlife Fund.

The Royal Zoological Society of Scotland's Edinburgh Zoo announced their own tiny pygmy hippo, named Haggis, was born Oct. 30. The newborn, female calf is "doing well," according to zoo staff.

Green eggs and ham? Even toddlers know when an event appears to be impossible, not just improbable.

Robert F. Kennedy Jr.’s claims about fluoride in the drinking water are linked to Cold War conspiracy theories about the substance.

The gentle animals are part of Portland International Airport's effort to counter travel stress with soothing elements from nature.

Parrots are unique among birds in how they produce the pigmentation that makes their vibrant feathering. It turns out a single enzyme calibrates the reds and yellows of a parrot’s brilliance.

The 50-year-old had been reported overdue from a deer hunting trip. At least 30,000 brown bears are estimated to be in Alaska and mainly live along the southern coast.

Crews in Spain searched for bodies in stranded cars and sodden buildings as people tried to salvage what they could from homes following monstrous flash floods.

The discovery of an infected pig at a backyard farm in Oregon raises concerns about bird flu's potential to become a human threat.

For 50 years, a secretive group of government workers has been preparing for the worst. Here's a rare look inside the team that's ready to respond to a nuclear incident anywhere, anytime.

The Aral Sea has nearly disappeared over the last 60 years. Now, its source rivers are depleting.

In an undisclosed New Jersey location, there's a sanctuary for turtles intercepted in the process of being trafficked, and a man devoted to his charges.