Everything is opossum Opossums are the only marsupials in North America and get a pretty bad rap. These solitary, nocturnal beings are harmless to humans and are important to keeping the environment healthy. A single opossum can eat 5,000 ticks in a year, thus protecting other wildlife (and humans) from tick-borne diseases. #opossum #sandiegozoo #richard #LilRicky #BackyardWildlife #animals