'Wildlife' means all the plants, animals and other living things found in the wild. These can be mammals such as squirrels, reptiles like the sand lizard, fish, insects, and tiny little animals that you can't see easily.
Habitats are the places where plants and animals live. They are all around us on the land, in the water, in the city and countryside. Habitats can be large, like woodland and farmlands, or small, like ponds and hedgerows. Some animals live in really tiny places, like the space between sand grains.