Helping family is key for social birds

(Phys.org) -- Social birds that forgo breeding to help to raise the offspring of other group members are far more likely care for their own close relatives than for more distant kin, a new study has found.

Potomac tops conservation group's list of endangered rivers

The Potomac River is much healthier today than it was 40 years ago, when its chemical-laced, sewage-laden waters helped inspire the 1972 Clean Water Act. But the Washington waterway still has a long way to go, as suggested ...

Facebook lets users take more data home

Facebook on Thursday began letting members of the world's leading online community take more of their pictures, posts, messages and other data home with them.

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