Quirks & Quarks

May 25 — Sharks on a bird diet, fossils of fungus, 'lifelike' machines and more…

Giant beaver extinction, the beauty of calculus and oil spill dispersants

Giant beaver extinction, the beauty of calculus and oil spill dispersants

A barn Swallow (Hirundo rustica) bird is pictured on April 28, 2015 in Barhoeft, Germany. (STEFAN SAUER/AFP/Getty Images)
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