For the first time, research reveals crows use statistical logic

Researchers from the University of Tübingen found for the first time that crows can perform statistical reasoning, according to a Current Biology study. Dr. Melissa Johnston and her team trained two crows to peck images on touchscreens for food rewards, with each image linked to a different reward probability. Over 10 days and 5,000 trials, the crows consistently chose the image with the higher probability of reward. After a month without training, the crows still picked the highest-probability option every time.