Peterson Field Guide: Venomous Animals & Poisonous Plants. AUTHORS: Steven Foster & Roger Caras. This esential field guide features 90 venomous animals and more than 250 poisonous plants and fungi. The 340 line drawings and 160 color photographs make identification a snap. The unique system developed by Roger Tory Peterson shows exactly what features to look for to make a positive identification. Sturdy Soft Cover, 4.5" x 7", 245 pages. To Order By Phone Call Toll Free: 866-596-9982