I thought some of you might enjoy this comparison between a jack rabbit and a cottontail rabbit. The main difference is size. A jack rabbit can be as large as 10 lbs. A cottontail will rarely reach one lb.
Jack Rabbits survive in the desert by being evasive. They run really fast and are incredible jumpers. One of their escape tactics is to run right at a cactus, then jump over it. They can jump higher than a coyote, so they usually escape.
The cottontail survives by having lots of babies. There are so many of them that some survive. Many don't.