From NPR News

You can't help but notice that Scott Pitnick has a big tattoo. It's a sperm with a long tail that winds down his right arm.

People sometimes stare. "And when I tell them what it is, they either are very interested or they pivot on their heel and walk away," says Pitnick, an evolutionary biologist at Syracuse University. "All eye contact ceases."

Some people just don't like talking about sperm. But not him. He's spent his career trying to unravel the mystery of giant sperm.

Ukrainian pilot and national hero Nadiya Savchenko has been released from Russia, where she has been held for almost two years.

Native American leaders and a U.S. State Department official are urging a French auction house to call off a sale of sacred art and artifacts.

The world is not ready for the next big pandemic. That's what health officials have been saying for years. If a deadly flu strain spreads around the globe, we could be in trouble.

This week the health leaders are trying to change that. They're gathering in Geneva for the World Health Organization's annual meeting, the 69th World Health Assembly. At the top of the agenda: reshaping WHO into an agency that can take action during a health emergency instead of just giving out advice.

House Speaker Paul Ryan shot down reports Wednesday that he was on the verge of endorsing Donald Trump for president.

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