"Explains how meat-eating animals hunt down and capture prey. Describes carnivores' physical characteristics--such as teeth, claws, and tentacles--and predator behaviors, such as ambushing and pack hunting"--
"Explains how and why animals live in social groups. Describes the advantages and disadvantages of group living, such as protection from predators, ease of movement, and quicker spread of disease"--
"Explains how animals live near or among human beings. Describes pets, working animals, pests, farm animals, and wild animals that live in cities and towns"--
"Explains how animals depend on one another for survival. Describes mutualism, commensalism, and parasitism, and how they provide animals with food, transportation, and shelter"--