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 ...

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 ...

WASHINGTON (Reuters) - The expansive dinosaur group that included big predators such as T. rex also was populated by a number of oddballs, weirdos and outcasts. A newly described dinosaur from ...

Male Broad-tailed Hummingbirds perform dramatic aerial courtship dives to impress females. In a new study, scientists have shown that diving males closely time key events to produce a burst of signals ...