competition (biology)

Jan Thornhill traces the history of this perky little bird, one of the most adaptable creatures on Earth, from its beginnings in the Middle East to its spread with the growth of agriculture into India, North Africa and Europe.

Introduces the many adaptations animals have made to survive, hide from predators, catch prey, and increase reproduction; including the long necks of giraffes, thick fur and large feet of polar bears, and more.

Discusses various animal adaptations and how those animals use them for survival.

Graphic organizers illustrate the competition for resources necessary for survival within a species and among different species.

Explores how organisms adapt to changing environments, from changes in physical appearance to adaptations in behavior, and examines the evolution of different plant and animal species.

Describes and illustrates the theory that the dinosaurs became extinct after a giant asteroid hit the Earth over sixty-five million years ago.