Crows can understand probability like primates do

Crows could make choices in line with the probability of getting a reward – a cognitive feat identified to mathematicians as statistical inference, and infrequently discovered exterior of primates.

“‘Chicken mind’ is commonly used as an insult, however that’s not likely the case,” says Melissa Johnston on the College of Tubingen in Germany.

Her crew skilled two carrion crows (Corvus corone) to peck at 9, different-coloured symbols to obtain a reward: a small meals pellet or worms. Every image was related to a special chance of receiving …