Elysha O'Brien calls herself a "Mexican white girl." Not just because of her ethnically ambiguous appearance, she says, but also because she can't speak Spanish. Fearing their children would experience discrimination if they spoke Spanish, her parents chose not to teach them their native tongue.
Organizing for Action — a group that formed out of President Obama's re-election campaign — has focused its ire on Republicans it calls "climate change deniers." But some environmentalists are frustrated with the president himself on issues like the Keystone pipeline.
Our closest relatives, chimpanzees and gorillas, breast-feed their offspring for several years. Some baby orangutans nurse until they are 7 years old. Researchers found a way to test ancient teeth for clues about when humans cut nursing short.