News
- Earth
The Arctic was once warmer, covered by trees
Pliocene epoch featured greenhouse gas levels similar to today's but with higher average temperatures.
- Animals
Malaria mosquito dosed with disease-fighting bacteria
After thousands of tries, lab gets parasite-carrying insect to catch Wolbachia.
- Psychology
Brain training technique gets a critique
In a new study, a popular style of memory workout leaves reasoning and mental agility flat.
- Health & Medicine
Black women may have highest multiple sclerosis rates
Large study counters common assumption that whites get MS more.
- Humans
Europe is one big family
Continent's ancestry merges about 30 generations ago, genetic study finds
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