Black-tailed jackrabbit

The black-tailed jackrabbit is a big-eared hare that bounds across the western U.S. and Mexico. It thrives in scrubby grasslands from low valleys to high mountain slopes. This speedy hare stands out with its namesake black-tipped tail and ability to dash moments after birth.

• Newborns hit the ground running—they're born furry, eyes open, and mobile within minutes.
• A single litter often has four babies, but can range from two to seven in warm areas.
• Adults grow up to 2 feet long and weigh between 3 to 6 pounds.