Nature

Tom Brown's Field Guide to Nature Observation and Tracking:

Tom Brown's Field Guide to Living with the Earth:

Nim Chimpsky: The Chimp Who Would Be Human

Letters from the Hive: An Intimate History of Bees, Honey, and Humankind

Save Our Planet: 750 Everyday Ways You Can Help Clean Up the Earth/25th Anniversary

The Rhino with Glue-On Shoes: And Other Surprising True Stories of Zoo Vets and their Patients

The Red Hourglass: Lives of the Predators

When Elephants Weep: The Emotional Lives of Animals

Nature's Second Chance: Restoring the Ecology of Stone Prairie Farm

Uncertain Peril: Genetic Engineering and the Future of Seeds

Soaring with Fidel: An Osprey Odyssey from Cape Cod to Cuba and Beyond

When the Rivers Run Dry: Water--The Defining Crisis of the Twenty-first Century