This document provides background information and instructions for an activity where students design an animal adapted to a specific environment. It defines key terms like adaptation, organism, environment, and habitat. It explains that most animals are only adapted to 1-2 habitats and would struggle if placed elsewhere. The activity has students choose an environment, design an animal with adaptations for that habitat, and consider how it would be affected if the habitat changed. The goal is for students to understand that organisms must be suited to their environment to survive and thrive.