A new study published in Science looked at thousands of marine animals over a 540-million-year evolutionary span. Their conclusion: Most of them got larger.
The test is as simple as a pregnancy test. So it could help health workers find and stop new outbreaks more quickly. But it doesn't catch every case and still requires some lab equipment.
Nancy Kanwisher studies the brain partly by staring at her own. She's spent countless hours in an fMRI scanner, mapping her own brain to gain insight into what makes us human.
Sensing the motives and feelings of others is a natural talent for humans. But how do we do it? Neuroscientist Rebecca Saxe explains how one region in the brain focuses on other people's thoughts.
Philosopher David Chalmers asks why humans have a sense of self, a constantly-running movie full of sensation and internal chatter. He offers two ideas about the nature of consciousness.
Neuroscientist Suzana Herculano-Houzel turns brains into soup, so she can meticulously count the neurons, and determine why human brains are unique.
When neuroanatomist Jill Bolte-Taylor felt her brain shut down during a stroke, she was more fascinated than panicked. Even though she spent eight years recovering, she's grateful for the stroke.
The outbreak of drug-thwarting bacteria that contributed to the deaths of two patients at a UCLA hospital isn't likely to spread further, doctors say. Still, drug resistance is trouble nationwide.
Sharpen your Swiss Army knives and grab an extra roll of duct tape because Mac may be coming back. The creators are looking to the fans to design the new show. And there's one big twist.
The Food and Drug Administration has approved a drug that thwarts some enzymes breast cancer cells use to evade treatment with estrogen-blocking drugs.
Scientists have found some human DNA that, when added to mice, makes their brains bigger. But as DNA research into human brains goes forward, are there ethical lines we shouldn't cross?
Our lives are now so noisy that we're at risk of shutting out nature's beautiful sounds, a new study shows. Anthropologist Barbara J. King invites us to be still and listen to the world.
Humiliation, fear and unpredictability all turn up the volume on pain, research shows. And meditation can turn down pain's intensity, according to scientists who are starting to figure out why.
Fat has a lot in common with the five basic tastes: salty, sweet, sour, bitter and umami. But while people easily recognize the texture of fat, scientists say they can't quite perceive the taste.
Where there's pot, there's often an insatiable hunger. Now researchers have a big clue why: Cannabinoids, the drug in marijuana, appear to flip a neural circuit that normally tells us we're full.
New psychological research explores a phenomenon known as the entourage effect. We hear why people like to create their own entourages.
Working as a professor isn't an easy job anywhere. But try doing innovative research with only four hours of electricity a day, no access to the Internet and hostility from male colleagues.
Savory fish are a staple for penguins, but the poor birds lack the ability to taste the umami flavor of their meals. One hypothesis? The genes at play got frozen out of commission.
Physicist Robert Davies worked with a classical quartet and two visual artists to create a musical performance about climate change. The music and images, he says, help the information take hold.
Is the FDA being sexist, or appropriately cautious in requiring stringent evidence that the latest pill works and is safe? Women's advocacy groups aren't sure.