Caitlin O'Kane is a New York City journalist who works on the CBS News social media team as a senior manager of content and production. She writes about a variety of topics and produces "The ...

In the past few decades, ornithologists have noticed some the birds' yellow feathers have mysteriously turned red. (See National Geographic's backyard bird identifier.) At first researchers ...

Scientists say the yellow coloring on the bird is connected to lacking proteins, or enzymes. “It’s actually two enzymes. It ...