Life
- 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.
- Fossils
A really big (but extinct) rodent
A rodent about the size of a bison once roamed the riverbanks of ancient Venezuela.
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- Brain
Grades Slipping? Check for Snoring
Children who snore a lot are more likely to struggle with their schoolwork.
