The jumping spider family (Salticidae) contains more than 500 described genera and about 5,000 described Specz making it the largest family of spiders with about 13% of all species. JumpCebrennus rechenbergi, also known as the Moroccan flic-flac spider, is a species of huntsman spider indigenous to Morocco. It inhabits the sand dunes of the Erg Chebbi desert where if provoked or threatened it can escape by doubling its normal walking speed using forward or backward flips similar to acrobatic flic-flac movements used by gymnasts C. rechenbergi is the only spider known to use this unique form of rolling locomotion. The discovery of the Moroccan flic-flac spider has influenced biomimetic robot research, resulting in the development of an experimental robot based on the spider's motioing spiders have some of the best vision among arthropods and use it in courtship, hunting, and navigation. Although they normally move unobtrusively and fairly slowly, most species are capable of very agile jumps, notably when hunting, but sometimes in response to sudden threats. Both their book lungs and the tracheal system are well-developed, and they use both systems (bimodal breathing). Jumping spiders are generally recognized by their eye pattern. All jumping spiders have four pairs of eyes with one pair being their particularly large anterior median eyes.
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