Audubon Cottontail (Sylvilagus auduboni) This is one of the most common mammals that will be seen at Torrey Pines. It prefers to live in rather open brush and can be seen darting from bush to bush when it is surprised by another animal or person. Its small, fur-lined nest built on open ground can sometimes be seen by a careful observer. Very usually there are one to five baby rabbits born in the litter, all born with their eyes closed and no fur. The cottontail rabbit has dark hair and fur on the tips of the relatively short ears and a conspicuous white tail.

Brush Rabbit (Sylvilagus bachmani) This smaller version of the cottontail may be easily confused with it. The main difference is the smaller tail and the ears are solid brown without the darker tips. It breeds primarily in the spring time and has from three to six babies per litter. It prefers much denser brush than the cottontail.

Blacktailed Jackrabbit (Lepus califomicus) This large rabbit, which is really a hare, can be seen in the open areas of the lowlands. It seeks shelter in the brush when disturbed, but usually relies on its long legs and rapid speed to avoid predators. They breed year round and will produce as many as seven young hares per litter. The young are born fully haired, with the eyes open, and therefore referred to as precocial.

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