OK, class, it’s time for YouTube
I teach a course in marine biology at a college in central Maine. Marine biology is one of those whizzbang courses that students are attracted to because of all the talk of sharks, coral reefs, and dolphin communication. But there’s also the fascinating “low end” stuff: exotic invertebrates that look like little more than inanimate, sedentary lumps, and seaweeds that dance in regal splendor as they shift about in the currents.