Answers such questions as "How fast can birds fly?" Do birds store food?" "Can owls see in total darkness?"

The answers to all the questions you've ever had about homosexuality but were afraid to ask are finally in one book, Is It a Choice ? In this new

Why is the night sky dark? How do dolphins sleep without drowning? Why do hangovers occur? Will time travel ever be a reality? What makes a knuck

Two well-known fitness writers pool their resources and knowledge to answer questions about exercise, diet, health, and weight loss--240 in all--