Forgetting Dreams
Why can't we remember all of our dreams? (Happens in the deep parts of the brain, perhaps not meant to surface)
TV Bullies
Children who watch a lot of TV are more likely to become bullies later in life.
Reefs and Sharks
Lack of sharks leads to fewer coral reefs, and superglue based on mussel adhesive.
Bird Migration
How do birds know when to migrate? (They watch day length, and then wind conditions.)
Iron-Deficient Moms
Mothers who had adequate iron levels had better parenting skills.
Gray Hair
What causes hair to turn gray? (Toxins build up and kill the pigment cells in the hair follicle.)
West Nile Weather
Hot summers mean a higher risk of West Nile virus epidemics
Bottomless Soup Bowl
People whose bowls kept filling up with more soup ate more, and fans of a winning team are more violent.
Middle-Aged Eyes
Why do your eyes change over age 40? (Lens becomes less flexible due to aging.)
Gum & Heart Disease
Two kinds of oral bacteria were found in arterial plaque.
Spinning Earth
Why does the Earth spin? (Debris came together to form the Earth was spinning)
Medicinal Produce
Analyzing colored carrots for phytochemicals, and a compound in grapes inhibits a cancer enzyme.
Green Leaves
Why are leaves green? (Chlorophyll doesn't absorb green light, so it reflects back.)
Dirt Diversity
Agricultural methods can keep the diverse organisms in soil healthy.
Camera Red-Eye
Why do flash pictures sometimes give subjects red eyes? (Light reflects off blood-vessel-rich retina.)
Zombie Worm
The zombie worm feeds off the oil in whale bones on the ocean floor.
Animal Locomotion
Bats can walk and gallop, and octopi can stroll on two legs.
Fingerprinting
Shining x-rays on fingerprints can detect the chemical elements left behind.
Intermittent Fasting
Eating every other day slowed down cancerous processes in mice.
Artificial Wetlands
Water hazards on golf courses can filter out pollutants and pesticides.
Elephant Impressionists
Elephants can mimic sounds, which might help them maintain social bonds.
Mountain Roundup
Mountain dwellers have lower death rates, and doctors will run medical tests on themselves while climbing Mount Everest.
Grubs
Using grubs to reduce manure on farms, and then converting them into animal feed