07/03/2017

Vision, not limbs, led fish onto land 385 million years ago

A provocative new Northwestern University and Claremont McKenna, Scripps and Pitzer colleges study suggests it was the power of the eyes and not the limbs that first led our ancient aquatic ancestors to make the momentous ...

Group tolerance linked to perceptions of fairness and harm

Look for the fault line in any modern conflict and it likely follows a familiar division between the opposing groups. Whether that divide is sectarian, ethnic or ideological, people's devotion to the values that define their ...

Researchers develop equation that helps to explain plant growth

It is rare in biology that a single trait can answer questions spanning several fields of research. One such trait is plant biology's "leaf mass per area," a simple measurement calculated by weighing a dried leaf and dividing ...

Trump set to roll back federal fuel-economy requirements

The Trump administration is moving to roll back federal fuel-economy requirements that would have forced automakers to increase significantly the efficiency of new cars and trucks, a key part of former President Barack Obama's ...

US desert songbirds at risk in a warming climate

Projected increases in the frequency, intensity and duration of heatwaves in the desert of the southwestern United States are putting songbirds at greater risk for death by dehydration and mass die-offs, according to a new ...

'Black swan' events strike animal populations

Black swan events are rare and surprising occurrences that happen without notice and often wreak havoc on society. The metaphor has been used to describe banking collapses, devastating earthquakes and other major surprises ...

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