Quirks and Quarks

Quirks & Quarks for Feb. 13, 2016

Gravitational waves shake the universe, Songbirds practice their love-songs in the off-season, Neanderthal genes leave unhealthy legacy, Horses can read human faces, Early human relative had a weak jaw, and Devil's Hole Pupfish survives in the desert

Gravitational waves, Neanderthal genes, and more

Simulation of the collision of two black holes (SXS, www.black-holes.org)
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Theme music bed copyright Raphaël Gluckstein, Creative Commons License by-nc-nd-2.0