* In my part of the country, they're really a cross between coyotes and wolves.
* Killing coyotes is like mowing grass. It just makes them grow faster.
* They are wicked-smart animals.
* As a corollary: they are tough animals to study, because they know when humans are around.
You can read more about them in this great article in the New York Times by Carol Kaesuk Yoon.