Here's why:
* Short breeding season: Jack rabbits have a short breeding season, usually in the spring. This limited time necessitates finding multiple partners to maximize reproductive success.
* Territoriality: Males are territorial, and their territories overlap with those of several females. This overlap allows for multiple mating opportunities.
* No parental care: After giving birth, female jack rabbits do not care for their young. This lack of parental investment further supports a polygamous mating system.
While they don't have lifelong partners, jack rabbits do form temporary bonds during the breeding season. These bonds usually last for a few weeks, just long enough for mating to occur.