This article was reviewed by Felix Gussone, MD. Key Takeaways: Hormones play a major role in regulating metabolism, mood, ...

While the weather outside may indeed get frightful this winter, a parka, knit hat, wool socks, insulated boots and maybe a ...

Populations of Michigan's only rattlesnake, the eastern massasauga, are showing the negative effects of inbreeding in ...

On a remote Alaskan island, gray wolves are rewriting the rulebook by hunting sea otters — a behavior few scientists ever expected to see. Researchers are now uncovering how these coastal wolves ...

The sun has set and the clouds are washed in purple as Mauricio Contreras and his daughter Eunices head out to fish in the ...

The native brook trout, the official state fish of New York, is making a comeback in Adirondack streams due to the success of the national Acid Rain Program.

Gray wolves are hunting sea otters. Scientists are studying how land predators adapt to ocean hunting and what this means for ecosystems.

Brevard is releasing sterilized male mosquitoes to combat dengue fever, Zika and other mosquito-borne illnesses.

The lake populations consisted of younger fish, indicating that the pesticides contributed to shortened lives. Laboratory ...

Plastic pollution may be quietly fueling algal blooms by knocking out the grazers that usually keep algae under control.

When the Chicxulub impactor hit, the animals that had the best chance of surviving turned out to be those with wings. See how new finds are reshaping the story of how birds evolved.

Forget everything you thought you knew about the longevity gap; a groundbreaking study reveals that the secret to a longer ...