Short snouts and a flat profile — within a span of 100 years, humans have significantly changed the shape of the skulls of German domestic pigs. This is likely down to new breeding practices introduced at the beginning of the 20th century. The researchers analyzed 3D scans of 135 skulls of wild boars and domestic pigs from the early 20th and 21st centuries. Surprisingly, the same effects can even be observed in species that were kept separately.
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