Average Lifespan: 6 years in the wild, 9-10 in captivity if raised carefully

Running Speed: 45 MPH (70 km)

Height: Around 6-19 inches in length

Weight: 12-22 lbs.

The jackhoppers are a new species of rabbits/hares often found underground or even in nests above ground. Despite their fierce natures, they are otherwise the same size as ordinary rabbits as they are not kept as pets. Jackhoppers often have semi-green fur with streaks of brown or slightly blonde, although most of them have the fur colors of other regular rabbits and hares, albeit with streaks of lighter green and blue on very rare occasions.

While they're not kept as household pets, they are often kept in captivity to be prepared as food considering how they're also a threat to household pets and crops. Their blood contains powerful plasma cells capable of combating poisons and other diseases, which is why their blood is often extracted in order for scientists to engineer powerful forms of serum for anti-disease purposes---their blood is also helpful for people with intense blood clots and strokes. Second, their meat isn't high in fat, but it's proven to be very nutritious especially when one is surviving out in the wilderness.

Since jackhoppers are another common source of food, repopulation of these rabbits and hares can be around 85% faster than ordinary humans and household pets. It's actually very common for a male jackhopper to have several females as mates, thus sexually reproducing an average of 30 children minimum every now and then---a single jackhopper can have triple the number of descendants as ordinary mice/rats per year. Besides berries from bushes and vegetable crops, they are also known for eating various kinds of weeds, even harmful ones. Under extremely dire circumstances, they'll likely eat various nuts or engage in cannibalism.