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Cache of tools found in Kenya are world's oldest

Sigma Xi SmartBrief | May 21, 2015

The world's oldest-known stone tools have been discovered in Kenya, according to a study published in Nature. The 149 artifacts are 3.3 million years old, pre-dating humans, and show that human ancestors had the mental ability to create such implements. The tools "shed light on an unexpected and previously unknown period of hominin behavior and can tell us a lot about cognitive development in our ancestors," said Sonia Harmand, lead author of the study. USA Today (05/21)


Researchers stumble upon strange craters in Switzerland lake

Sigma Xi SmartBrief | May 20, 2015

Birds and squirrels understand each other, scientists say

Sigma Xi SmartBrief | May 20, 2015

Study shows how probiotics may help reduce inflammation

Sigma Xi SmartBrief | May 19, 2015

Scientists piece together life of 3,400-year-old Egtved Girl using coffin remains

Sigma Xi SmartBrief | May 21, 2015

Strange flying lemur an ace at gliding, study finds

Sigma Xi SmartBrief | May 19, 2015

DNA study: Dogs split off from wolves earlier than once thought

Sigma Xi SmartBrief | May 22, 2015

Viruses may help fight off antibiotic-resistant bacteria

Sigma Xi SmartBrief | May 19, 2015

Researchers swap yeast genes for human ones, create new strains

Sigma Xi SmartBrief | May 22, 2015

Study: Shift to agriculture may have caused human bones to become lighter

Sigma Xi SmartBrief | May 20, 2015


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