Recently discovered teeth of a two-million-year-old human relative in Africa could give researchers new insight into genetics.

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U.S. Approves Sale of 'Lab Grown' Cell-Cultured Chicken
For the first time, U.S. regulators on Wednesday approved the sale of chicken made from animal cells, allowing two California companies to offer “lab-grown” meat to the nation's restaurant tables and eventually, supermarket shelves.
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