Podcast
HEALTH: New vaccines provide instant immunity, Addiction and Parkinson's disease, the upside of salt, ship pollution threatens coastal residents, and more.
Night Shift Metabolism
Staying up all night triggers biological changes that can lead to obesity, hypertension, and diabetes.
Polar Bear Hibernation
Polar bears don't hibernate the way that other bears do.
Dog Roundup
When training dogs, a new study reveals that you better use treats if you want tricks.
Podcast
BODIES: Regenerating tooth enamel, why we have fingernails, why hair turns grey, and more.
Imposter Caterpillars
A species of caterpillar tricks ants into treating it better than its own young.
Giant Snake
A super-sized snake in prehistoric Colombia tells scientists about the future of global warming.
Podcast
Caterpillars infiltrate ant nests, loneliness and your health, how planes can fly upside down, and more.
Aging Proteins
Research in rodents suggests that some animals' proteins are more resistant to age-related stress.
Perception Roundup
Scientists make advances in the understanding of synesthesia, a condition in which different senses are mixed up in the brain.
Podcast
EVOLUTION & MORALITY SPECIAL: Hunting large game led to the evolution of the conscience, and evidence of moral systems in other animals. Also: Giant snake fossil points to warmer times, and grandparents helped civilization evolve.
Nano-Submarines
Tiny "submarines" made from biological materials could deliver drugs to specific sites in the body.
Mosquito Duets
Mosquitoes tune their voices to one another during courtship.
Prehistoric Roundup
A newly discovered fossil reveals a warmer climate in the past.
Behind Kissing
The evolutionary roots of kissing are a bit less romantic than you might think.
Behind Kissing
The evolutionary roots of kissing are a bit less romantic than you might think.
Podcast
EVOLUTION SPECIAL: Celebrating Charles Darwin's 200th birthday, the evolution of kissing, mosquito love duets, robot sex, and the unhealthy history of the human diet.
Diet Evolution
The dawn of agriculture ushered in a surprisingly unhealthy era for humans.