News
- Anthropology
War arose recently, anthropologists contend
Infrequent killings among hunter-gatherer groups fit a scenario of a largely peaceful Stone Age, a study concludes.
- Tech
Surgical tool smokes out cancer in seconds
Sniffing for telltale molecules, method analyzes tissue with every cut.
- Genetics
Technique inactivates Down-causing chromosome
Though far from a cure, the advance could eventually lead to gene therapy that alleviates some symptoms.
- Animals
Fattened livers prep white sharks for extreme migrations
The organ's reserves enable a long journey from waters off California to Hawaii and back, tracking data suggest.
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