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	Slow Fighters Beadlet sea anemones, which move at a rate of only 2 centimetres per hour, kill their prey by injecting poison from their tentacles. The sea bed   Previous: Back Book: Incredible But True Section: Incredible But True Chapter: Marine Life