The behavior of owls and specific information about the twenty-one North American species, by Helen Roney Sattler and Jean Zallinger. This is a limited preview.

These vampire bats have heat sensors in their noses-all the better for finding the sweet spot on a sleeping victim – and sipping half their weight in blood.

“Bats” by Sylvia A. Johnson, Modoki Masuda, supports the national science education standards.