1. Adaptive Behavior: Crows pay attention to how the human world works, and often use it to their advantage: Some have been observed cracking walnuts by dropping them from the exact height needed to bust them open on the pavement. 2. Planning: Planning sucks, because it always makes us do things, but even we have to admit that it requires a certain level of cognition that transcends what we think of as "animal." And yet crows do it: 3. Tools and Problem Solving: When someone mentions animals using tools, you probably think of chimps using blades of grass to get termites to eat, or maybe that dude with the unibrow who mows the neighbor's lawn -- but birds don't often come to mind. 4. They Can Remember You’re Face: Next time you see a group of crows, look closely. Try to remember which one is which, and see if you can tell the difference between them the next time you pass. 5. They Conspire With One Another: Crows have regional dialects, a difficult thing to have without a language.
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