Study uncovers 'de-urbanization' of America (w/ Video)

More than any other populace on Earth, Americans are on the move. Because of factors such as employment, climate or retirement, 14 percent of the U.S. population bounces from place to place every year.

Rethinking our resilience to wildfire

The 2017 wildfire season was the most extensive and expensive in U.S. history. Fires scorched 10 million acres in the western U.S. and federal fire-suppression expenditure surpassed a record $2.9 billion. There's no end to ...

Species' evolutionary choice—disperse or adapt?

Dispersal and adaptation are two fundamental evolutionary strategies available to species given an environment. Generalists, like dandelions, send their offspring far and wide. Specialists, like alpine flowers, adapt to the ...

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