Patagonian Mara

Their social organizations have a unique combination of monogamy and communal breeding. Being monogamous, pairs of maras stay together for life, with replacement of partners only occurring after one's death. The male has almost the sole responsibility in maintaining the pair by following the female wherever she goes. A male marks his female with urine and marks the ground around her with secretions from his glands and with feces, making the grounds around the female a mobile territory.