That depends upon which breed of jackrabbit and which breed of rabbit you're comparing it with. Rabbit, and jackrabbits, can get up to somewhere around 30 pounds.
Jack rabbits
Most Jack Russels have a high prey drive and will go after rabbits and other small animals if given the opportunity.
jack rabbits love to get it on
jack rabbits are omnivores
No, there are no jack rabbits in Africa. The jack rabbit's cousin, the hare, lives in Africa.
No, cottontail rabbits do not live in the desert. The desert does not support the lifestyle of the cottontail rabbit.
most rabbits live in woods in North America, jack rabbits live in deserts.
Many species of cottontail are commonly referred to as, "Jack-rabbits."
foxes
yes
Yes they are
no