Birds that dive underwater — such as penguins, loons and grebes — may be more likely to go extinct than their nondiving kin, a new study finds. Many water birds have evolved highly specialized bodies ...

It was a tense 3 1/2-hour car ride for Cyndi Routledge, who was chasing down a creature never seen before in Tennessee. Routledge, secretary of the Tennessee Ornithological Society, had gone on drives ...