Crash Course Ecology Season 1 Episode 4 Community Ecology: Feel the Love ( Air Date 2012-11-26 ) Genre Documentary category. Overview "Interactions between species are what define ecological communities, and community ecology studies these interactions anywhere they take place. Although interspecies interactions are mostly competitive, competition is pretty dangerous, so a lot of interactions are actually about side-stepping direct competition and instead finding ways to divvy up resources to let species get along.".