Pigeon Leadership
Pigeons use a loose hierarchy to determine which way they flock.
Empathy & Violence
Empathy and aggression share the same circuits in the brain.
Plant Budding
A change in temperature and day length signal plants to form buds in the spring.
Finch Genes
The zebra finch genome could provide insight into vocal learning in humans.
Enviropigs
Genetically engineered pigs produce 70 percent less phosphorus in their waste.
Knuckle Cracking
A 60-year-long experiment shows that knuckle cracking does not cause arthritis.
Cancer Cell Electricity
Tiny tumors could be detected by the electricity given off by cancer cells.
Bio Computer Roundup
The cat's lightning-fast hunting instincts of inspire new computer circuit design.
NASA’s Basement Tapes
Scientists resurrect satellite data from old NASA tapes.
Hummingbirds & Heliconias
Male and female purple-throated Carib hummingbirds have differently shaped bills and feed on different kinds of flowers.
CO2 & Near-Death Experiences
Scientists discover a possible physiological explanation for near-death experiences.
Oxygen-Free Animals
Scientists have discovered animals that can survive in the absence of oxygen.
Plants vs. Insects Roundup
A protein in coffee beans is an effective pesticide.
Carbon Monoxide Poisoning
A listener asks: if carbon monoxide is so deadly, why can't we smell it?
Personalized Cancer Test
A new test that sequences a patient's entire genetic code could help doctors treat cancer more effectively.
Shower Pollution
Bathing and showering could be washing drugs into our waterways.
Asteroid Sampling
Asteroids contain keys to the origin of the solar system, but the ones that reach earth are easily contaminated. Scientists reveal a new plan to …
Health Nanotech Roundup
Tiny gold-plated probes inside cells could monitor the progress of a disease.
F is for Fail
Exposing students to the letter "F" before taking a test makes them more likely to fail it.
Medicated Contacts
Contact lenses impregnated with vitamin E can deliver glaucoma medicine directly to the eye.