Aesop’s fable describes a thirsty crow that cannot reach reach the water in a pitcher. It cleverly uses stones to raise the water level. Recent research has found that crows are more than able to carry out this task.
Aptly named researcher Christopher Bird commented:
“Corvids are remarkably intelligent, and in many ways rival the great apes in their physical intelligence and ability to solve problems. The only other animal known to complete a similar task is the orang-utan.
“This is remarkable considering their brain is so different to the great apes’.
To see video of the clever crows go to