Sally Kneidel, PhD, is a biologist, wildlife fanatic, and author of 11 books on science topics. Her two most recent books, co-authored with daughter Sadie, are Veggie Revolution and Going Green - both are about green lifestyle choices and the dangerous impacts of the meat industry. She blogs about connections between the environment, wildlife, food, and health. She also reviews books, movies, and popular ecotravel destinations. Find her at veggierevolution and sallykneidel.com.