Swedes have taught crows to remove small trash from the streets
Category: Animal world, PEGI 0+
Today, 05:38
Several years ago, the Swedish startup Corvid Cleaning came up with a simple way to clean streets using crows. When a bird threw a cigarette butt into a special machine, the device immediately rewarded it with food.
The birds pick up the cigarette butts and throw them into special machines in exchange for food. Because crows are so intelligent, they learn quickly simply by imitating their peers.
