A captivating and beautifully photographed Scientists in the Field title about a man trying to discover the effects pesticides have on frogs and, in turn, on us. When Tyrone Hayes was growing up in South Carolina, he didn't worry about pesticides. .He just liked to collect frogs. Tyrone's interest in science led him to Harvard University, and though he struggled at first, he found his calling in the research lab of an amphibian scientist. Meanwhile, scientists discovered that all around the globe, frogs were dying. The decline has many causes, including habitat loss and disease. Tyrone discovered that the most commonly used pesticide in the United States, atrazine, may also play a role. Tyrone tested atrazine on frogs in his lab at Berkeley. He found that the chemical caused some of the male frogs to develop into bizarre half-male, half-female frogs. What was going on? That's what Tyrone wants to find out. AUTHOR Pamela S. Turner has a master's degree in public health from the University of California, Berkeley, and a special interest in microbiology and epidemiology. Her articles for children and adults have appeared in numerous scientific publications. She has also been a legislative aide and an international health consultant. She has written six books so far: HACHIKO: THE TRUE STORY OF A LOYAL DOG, GORILLA DOCTORS (HMH), LIFE ON EARTH, AND BEYOND, A LIFE IN THE WILD, THE FROG SCIENTIST (HMH) and PROWLING THE SEAS Other Books in Scientists in the Field Series 9780618756360 Science Warriors 9780618777068 Extreme Scientists 9780618015146 Secrets of Sound 9780618147991 Tarantula Scientist 9780618585458 Project Ultraswan 9780618581313 Tracking Trash