CrowdScience - How do you identify an optimistic crow? - Â鶹¹ÙÍøÊ×Ò³Èë¿Ú Sounds
CrowdScience - How do you identify an optimistic crow? - Â鶹¹ÙÍøÊ×Ò³Èë¿Ú Sounds
How do you identify an optimistic crow?
Do crows enjoy solving puzzles? Biologist Cody McCoy devised an experiment to find out