You have to be this tall to apply for sentry duty. Adult meerkats take turns acting as guard while the rest of the mob looks for food without worries. The guard (aka sentry) climbs to the highest rock, termite mound, or bush, stands upright on two legs, and then announces the beginning of guard duty with a specialized call. #meerkatmonday #mondaymotivation #sentryduty #moblife #dinnerbell #safetyinnumbers #sandiegozoo ⠀⠀📷Liz Sauer