Crows are often associated with the dark side and feared as symbols of the death, because, you know, they are all black and scary. You might not know this, but crows are among the smartest creatures on the Planet. Researchers have found out that crow have the intelligence of a 7-year-old child. They can remember your face (creepy, right?), can solve difficult problems using tools and adapt their behavior to different situations. The video below is just another example of how these creatures really are. Take a look: