In what may be the creepiest science experiment ever, researchers donned latex masks to find out why crows gather around their dead. The reason for the masks is because crows never forget a face, and the scientists involved weren't keen on getting harassed by angry corvids. Not only did the researchers scare the bejeesus out of a local man walking his dog, but they discovered that crows know what death is -- and they fear it. The evidence keeps stacking up for the remarkable intelligence of this much misunderstood and maligned bird. In fact, crows are as smart as a 7-year-old human child.
Read more at BBC Earth. Photo credit: Kaeli Swift/BBC.
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