Seattle, WA – In a follow-on study to the ground-breaking work by UW wildlife biologist John Marzluff, indicating that crows recognize individual human faces and associate them with potential threats, fellow researcher Miles Anderson has discovered that crows can tell if you washed your hands after using the bathroom. “People apparently exhibit a certain amount of guilt or tension in their face that is evident to crows. They will caw much louder and often in unison at volunteers who leave our control restrooms without washing their hands,” said Anderson.
Advertisement
