This video is an example of animal behavior in cognitive/problem-solving. I hope you will be as mind-blown I as was when I saw this bird fashioning a hook out of a hairpin to get its food out of the tube.
This video is an example of animal migration. While most life migrates north in search of milder conditions, Emperor penguins migrate south to breed.
When the mantis feels threatened, it will raise its arms and spread its legs to make itself look larger. This threat display is an example of a fixed action pattern.
This is an example of animal behavior in mating. Cuttlefish split their coloration down the middle, presenting typical male coloration towards the female, and typical female coloration toward rival males, to reduce competition and increase chances of getting a mate.