Prairie dogs don’t just warn their colony that a predator is near. Their alarm calls seem to encode what kind of animal is coming, and in some experiments its colour, size, and how fast it moves — all from a rodent’s squeak
A prairie dog standing sentry over its colony does more with a squeak than sound a generic alarm. That, at least, is the claim built up over roughly four decades of fieldwork by Con Slobodchikoff, an…
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