One-Atom Linchpin
A single calcium atom can make or break a bacterium's movement – and infectiousness.
A single calcium atom can make or break a bacterium's movement – and infectiousness.
ANIMALS: DNA analysis confirms virgin birth in sharks, bonobos are forever young, elephant genes fight disease, and mussel glue inspires medical sealants.
MEDICINE: Alzheimer's in the eye, artificial red blood cells, and a microbial Achilles' heel. Also: do toilet seats spread disease?
Two high school students expose food-labeling fraud using a simple DNA technique.
THE FOOD SHOW - High school students expose food fraud in New York City. Does gelatin really come from cow hooves? And the hormone behind eating when you're already full.
Scientists unravel genetic clues that may explain why most of our bones lose density over time, but our skulls do not.
Mountaintop removal mining's devastating effects on the environment, ancient Martian lakes, an herbal disappointment, fish that punish cheaters, and reading and writing in the brain.
A South American bird serenades potential mates by rubbing its wing feathers together.
People with Alzheimer's disease get less cancer, nearsightedness is on the rise in the U.S., why the bones of the skull don't become brittle, and how an ingredient in clown make-up could protect astronauts from radiation.
BRAIN REPORT: Vigorous exercise could stave off Parkinson's disease, oxygen-defying naked mole rats, why alcohol and caffeine make a dangerous combination, and why you can't fool anyone on Facebook.
A listener asks if handling library books puts him at an increased risk of contracting an influenza virus.
Outbreaks of the H1N1 virus during the twentieth century left many people with long-term resistance to the swine flu.