With more than 100,000 Americans waiting on a new organ, xenotransplantation is a leading example of how editing animals ...

Do you know why blue-footed boobies have blue feet? Author Laura Erickson does, and you’ll find the answers to this and many other great questions in her book, The Bird Watching Answer Book. (For the ...

Ranging from simple browns to eye-popping oranges and greens, birds have some of the most unique colors in the animal kingdom ...