>you can roost high up and get an overview of any situation. Crows are extremely intelligent and have developed a heightened ability to do "systems thinking"--w

>you can roost high up and get an overview of any situation. Crows are extremely intelligent and have developed a heightened ability to do "systems thinking"--working out the elements of any situation, how they interact, what causality there is, etc. Humans have a similar advantage in obtaining overviews (besides raw brain power). Because of bipedalism, humans are probably the tallest land predators among mammals. Polar bears come closest with a max shoulder height of about 1.6m.