Life
- Brain
Worry seems to shorten a timid rat’s life
Rats that prefer familiar settings tend to die younger than do more adventurous rats.
- Animals
Helping to save elephants
Preserving an enormous creature like the Asian elephant can be very challenging.
- Animals
Farming on a snail’s scale
Some snails plow leaves and add fertilizer to grow a fungus for dinner.
- Brain
Brain signals attention disorder
Children with attention disorders appear to have less tissue in certain parts of their brain.
- Earth
Killer space rock snuffed out ancient life
Rock fragments from Antarctica suggest a huge meteor struck Earth 250 million years ago.
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- Animals
Poisonous Spiders as Reluctant Hunters
The brown recluse spider prefers scavenging dead food to hunting live prey.
- Fossils
Did dinosaurs do handstands?
Enormous dinosaurs might have balanced on their front feet when wading in shallow water.
- Fossils
Watery fate for nature’s gliders
Fossil bones hint that sea-level increases doomed Atlantic albatross populations.
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- Animals
Walks on the wild side
Animals that roam widely in the wild do more poorly in zoos than those with smaller ranges.
- Animals
Figuring out what makes dogs tick
Biologists have deciphered a poodle's DNA to learn about the genes that decide what dogs are like.
