physiology

Explores the sense of taste and how it functions in various animals, birds, insects, and fish.

Explains how muscle and bones work together to help the human body move, in simple text with illustrations, providing information the skeletal system, muscles, nerves, and more.

Describes the ways in which certain animals, such as snakes, dogs, weevils, moths, elephants, and owls, use their noses to pick up scents and breathe.

Introduces the unique ears of bats, mosquitoes, owls, frogs, grasshoppers, shrews, and rabbits.

Explains each step of the digestive process.

Explores the sense of touch throughout the animal kingdom, examining how it works in mammals, birds, fish, insects, and humans.

Presents information from a Christian perspective on a variety of topics for teenage boys, including steroids, alcohol use, body changes, tattoos, pornography, sexual behavior, and more.

Describes the physical and emotional changes that occur in boys (and, to a lesser extent, in girls) during puberty and discusses sexual activity, homosexuality, AIDS, and other related topics.

With the help of her friends and some adults, Camy explains to girls that the changes of puberty are normal and gives them the advice they need to make it through the beginning of adolescence.

Examines the senses of animals and their physical adaptations with 200 color photographs and text.