Reddit study shows how growth, aging affect online communities

Through studying groups on the website Reddit, researchers at The University of Alabama found as online groups grow and age, discussion concentrates among fewer contributors and retention of new contributors becomes harder.

Thousands evacuated as Australian bushfires rage

Thousands of people were being evacuated from their homes in northeast Australia late Wednesday, as bushfires raged across Queensland state amid a scorching heatwave.

Chimpanzees sniff out strangers and family members

Chemical communication is widely used in the animal kingdom to convey social information. For example, animals use olfactory cues to recognize group or family members, or to choose genetically suitable mates. In contrast ...

Women may bear the brunt of climate change's impacts

In the weeks following Hurricane Sandy, I traveled from the Upper East Side of Manhattan to Staten Island to help community members rebuild their devastated neighborhoods. Perhaps the most poignant experience I had was helping ...

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