Sizing Up Dogs II
A listener asks whether it's true that large dogs don't live as long as small dogs.
Why Is It?
Sizing Up Dogs I
A listener asks whether large dogs are more intelligent than small dogs.
Sitting Close to the TV
A Science Update listener asks if sitting too close to the television can hurt your eyes.
Scary Monsters
A listener wonders why we fear irrational things when there are plenty of real threats out there.
Email Spam
Email spammers use disorienting techniques to get you to click on their links.
Dino Chicken
Scientists switch off genes in chickens to learn about dinosaurs.
Space Elevator
Could a “space elevator” carry supplies to the International Space Station?
Why Are Plants Green?
The dominance of green chlorophyll on Earth may have come after a more purple period.
Baby Tooth Cavities
Baby teeth fall out eventually. But that doesn't mean cavities in baby teeth should be ignored.