News
- Archaeology
Neandertals used tools with versatility
Microscopic data from artifacts found at two Ukrainian sites indicate that Neandertals used stone tools in flexible ways that allowed them to maintain a broad diet for nearly 50,000 years.
- Earth
Dusty workplace may cause change of heart
Occupational exposure to fine dust can trigger adverse changes in the hearts of even strong, healthy workers.
- Health & Medicine
Two drugs may enhance recovery from stroke
Two drugs, levodopa and dextroamphetamine, may help stroke patients to recover the ability to move and speak.
- Ecosystems
Fierce invader steals nests from a native fish
The round goby, a Eurasian fish that has invaded the Great Lakes, is causing the decline of the mottled sculpin by displacing the native from its spawning sites.
