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	Crafty Crabs - Hermit The hermit crab often carries anemones on its shell. Using the stinging cells of their tentacles, the anemones protect the crab from predators. Hermit crab   Previous: Back Book: Incredible But True Section: Incredible But True Chapter: Marine Life