Gestation usually lasts 41-43 days. They are well furred at birth, their eyes are open, and they can move about soon after birth. The black jackrabbit is a solitary species. Rather than digging and occupying burrows, it rests and takes shelter in shallow depressions made in soil or vegetation. There, the black jackrabbit resembles a short, charred stump among the gray-green vegetation and bare slopes and is extraordinarily conspicuous, even when motionless.
Black jackrabbits are mainly nocturnal.
During the day, they spend most of their time in the shade under bushes. During the most active part of the mating season, the males lose their customary caution and are abroad fighting with other males and pursuing females. Fighting consists of boxing with the fore feet or kicking with the hind feet. Habitat Black jackrabbits are found all over Espiritu Santo Island but are most abundant in the valleys and adjoining lower slopes of the hills. Espiritu Santo Island is a waterless volcanic island characterized by rocky hills and low mountains.