News
- Paleontology
Bone Crushers: Teeth reveal changing times in the Pleistocene
Tooth-fracture incidence among dire wolves in the fossil record can indicate how much bone the carnivores crunched and, therefore, something about the ecology of their time.
- Physics
Law and Disorder: Chance fluctuations can rule the nanorealm
A tug-of-war in a water droplet demonstrates that random fluctuations wield more than enough muscle to give nanoscale machines trouble.
- Health & Medicine
Heart damage tied to immune reaction
Researchers in Brazil have identified immune proteins that flood the heart tissues of many people with Chagas disease, suggesting a cause of this deadly complication of the parasitic tropical disease.
