https://www.youtube.com/watch?v=xZllWiKKPHk
Wild. Scientist shows that animal communication is more complex than we think.
Prairie dogs apparently have specific predator alarm calls for different species and appearances, and can even supposedly make names for objects they have never seen before.
For example, they have different calls for coyotes, dogs, and humans, and can communicate what colour shirt a human is wearing and whether they are carrying a gun.