Hank and his cat Cameo help teach us about animal behavior and how we can discover why animals do the things they do. Like Crash Course on Facebook: www.facebook.com/youtubecrashcourse Follow Crash Course on Twitter: www.twitter.com/thecrashcourse References: dft.ba/-35Uh crash course, biology, animal species, animal behavior, cat, pets, natural selection, sexual selection, morphology, physiology, structure, function, heritable traits, learned behavior, genetics, adaptive, evolution, stimulus, ethologist, proximate cause, hamster, ultimate cause, reproductive success, offspring, biolography, niko tinbergen, karl von frisch, konrad lorenz, austrian, Nobel prize, imprinting, nazi, foraging, optimal foraging model, alligator snapping turtle, bower bird, vampire bat, altruism, william hamilton, fitness, inclusive fitness, ethology, behavioral ecology, ecology Support CrashCourse on Subbable: subbable.com/crashcourse