Some well-known videos I've seen are a cow using its head a borewell to pump water out to drink, crows in Japan dropping hard nuts at zebra crossing so that the vehicles crush the shells and when cars stop to allow people to cross the road, the crows come down to pick up the seeds, chimpanzees using a stick at a termite hole to pull out the termites etc.
I'm not an expert on animal behavior but I think that it involves a combination of intelligence, reasoning, imitation, observation and using tools like humans.
Non-violence is the greatest Dharma; So too is all righteous violence.
I was working in a factory. There the products made are tested to examine the quality of the product. At the time of testing a huge sound will come. Before conducting the test, the testes will give a Siren as an indication that sound will come so that all others will get alerted. In that area, there were many monkeys. As soon as the siren is given these monkeys used to sit on the ground and close their ears with the front legs. That is an indication they also some senses and they also have some logic.