The world's smallest vertebrate -- animals that have a backbone -- is a frog that could sit within the confines of your fingernail, a new study reports.
Add cannibalism to the fearsome attributes of Tyrannosaurus rex, the big-headed dinosaur that roamed North America 66 million years ago and took no prisoners.
As any teenager will tell you, being popular is totally awesome. But it has a downside: According to a new study, popular people tend to catch the flu first.
Daily doses of vitamin B can halve the rate of brain shrinkage in elderly people with mild cognitive impairment (MCI), which can be a precursor to Alzheimer's, researchers at Oxford University said Thursday.
Get a kick out of this: Researchers reported Wednesday finding the world's oldest leather shoe in a cave in Armenia.
If you're working in a stressful environment, you and your colleagues may be communicating tension to one another without even realizing it.
As an unusual primate fossil is shown in New York, scientists talk about the 'Missing Link.' CNN's Richard Roth reports.
Scientists hailed Tuesday a 47-million-year-old fossil of an ancient "small cat"-sized primate as a possible common ancestor of monkeys, humans and other primates.
Women running for top offices need to appear competent and attractive, according to a new study. For male candidates, seeming competent may be enough
A new study finds no link between the measles vaccine and Autism. Elizabeth Cohen discusses the findings on CNN.
The Measles-Mumps-Rubella (MMR) vaccine causes neither autism nor gastrointestinal disorders, a study reported Wednesday, disputing a theory that has persisted for a decade.
Infections may play a bigger role in premature birth than doctors have thought, says a new study that found almost one in seven women in preterm labor harbored bacteria or fungi in their amniotic fluid
A global survey finds that Americans are most likely to have tried illegal drugs
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