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Maybe it was messier than we thought, some scientists now say. Big brains, long legs and long childhoods may have evolved piecemeal in different spots, in response to frequent swings in climate.

The move restores regulations guiding environmental reviews of big projects such as highways and pipelines that were scaled back by the Trump administration in a bid to fast-track the projects.

A federal judge ruled that the U.S. Army Corps of Engineers was responsible for some of the flooding during Hurricane Katrina, and ordered the government to pay more than $700,000 to five plaintiffs. Mark Schleifstein, a reporter at the New Orleans Times-Picayune, says of the 470,000 people who filed claims, about 100,000 are in the two areas where this lawsuit appears to have set a precedent. They will, he says, be able to go back to the court and ask for the case to be turned into a class action.

Famous — and occasionally controversial — physicist Freeman Dyson's new essay collection ranges from scientific history to today's hot-button issues like climate change and genetic engineering.

Chemical companies and water utilities are challenging the EPA’s recent rule putting limits on six PFAS chemicals in drinking water.

The discovery of a "prehistoric highway" in the United Kingdom could reveal more about how dinosaurs traveled millions of years ago.

The new normal of a hotter, drier longer droughts could change diets, pollute air and force ever more desperate measures to find water

With the death of a northern white rhino in San Diego's zoo this week, researchers are working to see whether they can save the species. They'd better hurry — only five remain.

With gasoline prices on the rise and pressure mounting to make better use of domestic energy, natural gas vehicles are making a comeback. Climate change is also driving demand — natural gas produces 20 to 30 percent fewer carbon emissions than diesel.

Bloomington resident Lloyd Davis is originally from the south suburban city of Chicago Heights. The software developer spoke with Jon Norton for the WGLT…