Researchers generate human-monkey chimeric embryos

Investigators in China and the United States have injected human stem cells into primate embryos and were able to grow chimeric embryos for a significant period of timeā€”up to 20 days. The research, despite its ethical concerns, ...

Groups urge pressure on Mexico to save tiny vaquita porpoise

Environmental groups called Thursday for an international ban on trade in a range of Mexican seafood and wildlife, seeking to force Mexico to do more to save the vaquita marina porpoise, the world's most endangered marine ...

Bacteria know how to exploit quantum mechanics, study finds

Photosynthetic organisms harvest light from the sun to produce the energy they need to survive. A new paper published by University of Chicago researchers reveals their secret: exploiting quantum mechanics.

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