Sen. Bill Cassidy publicly struggled with whether to back Robert F. Kennedy Jr. to lead the Department of Health and Human ...

For fruit flies, finding the right mate is all about the right song. Now, research shows that male flies don't just try to ...

Yahoo News provides the latest updates on the spread of bird flu in the U.S. and its effect on rising egg prices and ...

Beyond putting its work in some of the world's poorest countries in doubt, US President Donald Trump's sudden move to shut ...