A terrestrial animal is an animal that lives mostly on land, like cats or dogs or even elephants. This means that they usually spend most of their time being outside and walking or running around on the ground. These animals have special features that help them survive on land, like strong legs and sharp claws. They may also have thick fur to keep them warm and protect them from sunlight. Some terrestrial animals even use camouflage to hide from predators or sneak up on their prey. While there are many different kinds of animals in the world, terrestrial animals are the ones that live and thrive on land!