 Like other jackrabbits , the black @-@ tailed jackrabbit has distinctive long ears , and the long , powerful rear legs characteristic of hares . Reaching a length about 2 ft ( 61 cm ) , and a weight from 3 to 6 lb ( 1 @.@ 4 to 2 @.@ 7 kg ) , the black @-@ tailed jackrabbit is the third @-@ largest North American hare , after the antelope jackrabbit and the white @-@ tailed jackrabbit . The black @-@ tailed jackrabbit 's dorsal fur is agouti ( dark buff peppered with black ) , and its undersides and the insides of its legs are creamy white . The ears are black @-@ tipped on the outer surfaces , and unpigmented inside . The ventral surface of the tail is grey to white , and the black dorsal surface of the tail continues up the spine for a few inches to form a short , black stripe . The females are larger than males , with no other significant differences . 
 Like other jackrabbits , the black @-@ tailed jackrabbit <a href='uninflect' title='1'><mark>has</mark></a> distinctive long ears , and the long , powerful rear legs characteristic of hares . Reaching a length about 2 ft ( 61 cm ) , and a weight from 3 to 6 lb ( 1 @.@ 4 to 2 @.@ 7 kg ) , the black @-@ tailed jackrabbit is the third @-@ largest North American hare , after the antelope jackrabbit and the white @-@ tailed jackrabbit . The black @-@ tailed jackrabbit <a href='null_genetive' title='2'><mark>'s</mark></a>dorsal fur is agouti ( dark buff peppered with black ) , and its undersides and the insides of its legs are creamy white . The ears <a href='drop_aux' title='3'><mark>are</mark></a>black @-@ tipped on the outer surfaces , and unpigmented inside . The ventral surface of the tail <a href='drop_aux' title='4'><mark>is</mark></a>grey to white , and the black dorsal surface of the tail <a href='uninflect' title='5'><mark>continues</mark></a> up the spine for a few inches to form a short , black stripe . The females <a href='drop_aux' title='6'><mark>are</mark></a>larger than males , with no other significant differences . 
Like other jackrabbits , the black @-@ tailed jackrabbit have distinctive long ears , and da long , powerful rear legs characteristic of hares . Reaching a length about 2 ft ( 61 cm ) , and a weight from 3 to 6 lb ( 1 @.@ 4 to 2 @.@ 7 kg ) , tdablack @-@ tailed jackrabbit is thdahird @-@ largest North American hare , after the antelope jackrabbit and thedaite @-@ tailed jackrabbit . The dack @-@ tailed jackrabbit  dorsal fur is agouti ( dark buff peppered with black ) , and its undersides and the insides of its legs are creamy white . The ears black @-@ tipped on the odar surfaces , and unpigmented inside . The ventral surface of the tail grey to white , and the black dorsal surface of the tadacontinue up the spidafor a few inches to form a short , black stripe . The females larger den males , with no other significant differences .