News
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AnthropologyAncient hominids moved into Greece about 206,000 years ago
New analysis puts people at a contested Greek site about 206,000 years ago.
By Bruce Bower -
HumansEgg-meet-sperm moments are equal opportunities for girls and boys
Despite previous claims, equal numbers of male and female embryos are conceived, new data suggest.
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EnvironmentFracking chemicals can alter mouse development
Hormone-disrupting chemicals used in fracking fluid cause developmental changes in mice, new experiments show.
By Beth Mole -
Materials ScienceA new spin on guiding sound waves along a one-way route
A proposed acoustic topological insulator made of an array of spinning metal rods would channel sound waves in one direction along its edge, preventing any sound from bouncing away.