Spit: What's Cool About Drool

Renowned science writer and children's author Mary Batten examines everything that's cool about drool.

With informative and informal text that is paired with humorous comics and real-life photos, Batten' book tells the important story hiding in this gross-out subject. From the DNA in human mouths to the science behind Pavlov's dogs to the astounding wonders of saliva in the animal kingdom, Spit uncovers the secrets secreting in the many mouths around the globe.