Describes the appearance, habits, daily life, nesting, infancy, and enemies of this nocturnal bird.

An introduction to the physical characteristics, habits, natural habitat, relationship to humans, and future of the tiger, one of the largest meat-eating animals in the world.

An introduction to the physical characteristics, habits, natural environment, relationship to humans, and future of the cougar, a cat that is found in both North and South American and known by at least five other names, including puma, catamount, painter, mountain lion, and panther.

Describes the appearance, habits, habitat, daily life, infancy, and enemies of the bird that travels on land and in the water but not in the air.

Describes the appearance, behavior, life cycle, migration, and predators of the Rocky Mountain elk.