Incredible But True Incredible But True Human World History Makers Cities Of The World Art And Music Sporting Headlines Plant Life Fish, Amphibians, Reptiles Birds and Mammals Creepy Crawlies Marine Life Restless Earth Earth's Secrets Changing Weather Seas And Oceans Comparisons Amazing Structures Machines And Man World Of Inventions Travelling Around Mysterious Universe	Small But Fast As many of us know, house spiders can run very fast. In fact, relative to their size, they are faster than an Olympic sprinter.   Previous: Back Book: Incredible But True Section: Incredible But True Chapter: Creepy Crawlies