User:Cincotta1/sandbox/Mule x white-tailed deer

Odocoileus hemionus × virginianus is a hybrid of two common North American deer species, the mule deer and the white-tailed deer. This hybridization is one-way; because of different mating strategies in these species, a male white-tailed deer is much more likely to copulate with a female mule deer than is the reverse and when an offspring is produced, the child of male white-tailed deer is generally stronger and healthier than one of male mule deer. Nonetheless, hybrids are not likely to survive past their first year, being more vulnerable to predation than non-hybrids of either species. This one-way hybridization a contributing factor of declining mule deer populations.