A 27-year study of Magellanic penguins found that heavy rain thought to be prompted by climate change is taking its toll on penguin chicks.
Even though the genomes of most modern-day non-African humans possess are just one or two percent Neanderthal, up to 20 percent of the Neanderthal genome could be found in today's humans collectively, new research suggests.
Polar bears are adapting to melting Arctic sea ice by shifting their diet to include more land-based food, new research indicates.
New findings about the formation of the Grand Canyon may do little to resolve a heated geological debate over the canyon's age.
A genetic analysis of a man who lived on the Iberian Peninsula some 7,000 years ago reveals much darker skin than scientists had anticipated, but with blue eyes.
To attract a mate, the male túngara frog croaks from a shallow puddle, sending out ripples that invite not just female frogs, but also hungry bats.
A flash of so-called ball lightning was accidentally caught on video in China, lending researchers further insight into this rare meteorological phenomenon.
Intense weather events caused by El Niño may soon occur every 10 years, instead of every 20 years, thanks to warming Pacific waters.
An assessment of 1,041 species of cartilaginous fish revealed that these animals face a significantly higher risk of extinction than most other animals.
New satellite images show the spreading wildfire near Los Angeles.