Nancy Castaldo is the author of several nonfiction books for children, including The Wolves and Moose of Isle Royale and Sniffer Dogs: How Dogs (and Their Noses) Save the World. She lives in New Yo...ver maisNancy Castaldo is the author of several nonfiction books for children, including The Wolves and Moose of Isle Royale and Sniffer Dogs: How Dogs (and Their Noses) Save the World. She lives in New York’s Hudson Valley. nancycastaldo.comver menos