Diverse habitats and conditions make for diverse chimp behavior

A chimp may not always be just a chimp when it comes to behavior. In fact, the more varied the conditions the primates face, the more diverse their behavior and culture.

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To replace controversial plastic additive BPA, a chemical company teams up with unlikely allies

To test its new compound, Sherwin-Williams sought help from scientists and environmental groups critical of bisphenol A.


Chicago kids exposed to lead and other factors struggle as adults

A study finds that racial gaps among Chicagoans in teen pregnancy and wages are due, in part, to exposure to lead and other factors as kids.

Rising temperatures cause shift in behavior for marine life

Researchers from Ontario have noticed a change in their lakes because of climate change.


Neonicotinoids impact bees’ nursing and social behaviors, study finds

Exposure to neonicotinoid compounds, the world's most commonly used insecticides, directly impacts the social behavior of bumblebees, causing them to be less active and less likely to care for or feed larvae


The immune system has a say in how hard ‘teen’ rats play

“Teen” rats like to wrestle. A new study shows the brain’s immune system might trigger changes that morph this desire for rough-and-tumble play into the calm of adulthood.

Less screentime linked to better memory, learning in kids

Kids ages eight to 11 spend an average of 3.6 hours a day on screens, a new study shows. But the best thinking scores come from kids who average fewer than two hours a day of screen time.

We add it to drinking water for our teeth — but is fluoride hurting us?

Two studies — one from Canada and one Mexico — released today point to potential health problems from fluoride, which, in a majority of U.S. communities, is purposefully added to drinking water to protect people's teeth.

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Credit: Jerry Lai/flickr

DDT linked to an increase in autism risk in new study

The discontinued pesticide DDT is linked to an increased risk of autism, according to a new study out of Columbia University Medical Center.

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How many ants is the best number of ants? More than one, fewer than 100

How many ants does it take to make the best decision? This teen found that four to six is just right.

Why many Olympic athletes have early birthdays

When kids start out in sports, coaches tend to pick the biggest as the best. Here’s what scientists are trying to do about it.

Unlike adults, teens don’t perform better when the stakes are high

Adults tend to do better on tasks that have bigger rewards. Not teens. This difference might have to do with the rewiring of the brain during adolescence, new data suggest.

Remembering a pioneer of environmental health science

One rarely is lucky enough to drive the early evolution of a new scientific discipline, but Bernard (Bernie) Weiss was there, always at the forefront as the field of behavioral toxicology took shape.

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From our Newsroom

Hormone-mimicking chemicals harm fish now—and their unexposed offspring later

Fish exposed to harmful contaminants can pass on health issues such as reproductive problems to future generations that had no direct exposure.

America re-discovers anti-science in its midst

Fauci, Birx, Redfield & Co. are in the middle of a political food fight. They could learn a lot from environmental scientists.

Roadmap points Europe toward safer, sustainable chemicals

EU Commission releases ambitious strategy for getting hormone-disrupting chemicals out of food, products, and packaging.

Exempt from inspection: States ignore lead-contaminated meat in food banks

Hunter-donated meat provides crucial protein to US food banks. But an EHN investigation found a lack of oversight that could result in potentially hundreds of thousands of lead-contaminated meals this year.

How Europe’s wood pellet appetite worsens environmental racism in the US South

An expanding wood pellet market in the Southeast has fallen short of climate and job goals—instead bringing air pollution, noise and reduced biodiversity in majority Black communities.

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