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	Killer Tomatoes It is odd to think that tomatoes were first grown purely for decoration, as they were believed to be poisonous.   Previous: Back Book: Incredible But True Section: Incredible But True Chapter: Plant Life