This document discusses six types of terrestrial animals and their adaptations to different environments. It describes reptiles, birds, amphibians, insects, earthworms, and mammals. It then explains how animals are adapted to specific biomes like deserts, Arctic tundra, tropical forests, taiga forests, and temperate deciduous forests through physical traits and behaviors. Traits like camouflage, insulation, and hibernation help animals survive in their native habitats.