Historically, researchers have tested the safety and toxicity of chemicals by using biological assays, or bioassays. These tests involve exposing nonhuman animals – often rodents such as rats or mice ...

Biological age, rather than chronological age, may be a stronger predictor of colorectal cancer risk—especially in older ...

The Interior Department is suspending 20 Biden-era legal opinions, including one leading to fines against energy companies if ...

New research reveals residents in America's hottest cities may age 14 months faster biologically. Discover which 6 cities ...

The Interior Department suspended a legal opinion holding companies liable for accidentally killing ducks, cranes, pelicans, ...

Conservation, public health and environmental justice organizations sued the Trump administration today over the federal failure to respond to a petition requesting stronger oversight of toxic and ...

The firing of the only two park rangers to watch over manatees at a federal reserve incensed Kieran Suckling of the Center ...

State officials say they’ll fight for environment “with or without the federal government,” but critics are skeptical.

A new study found that living in areas in the U.S. with extreme heat may speed up biological aging in older adults. Here's ...

President Donald Trump has signed an executive order that significantly expands logging on federal lands, removing environmental protections and fast-tracking timber sales. The order directs agencies ...

A twin study found that unhealthy diets accelerate biological aging, while healthy diets slow it down. Genetics, rather than ...

Every spring since 1969, Dartmouth researchers produced hand-drawn maps of songbird territories in New Hampshire's Hubbard Brook Experimental Forest by listening for their distinctive calls. Fifty ...