Preschool children will be learning about the importance of food for health and energy. Bring in some samples of food that rabbits eat and discuss with children the difference between rabbits' food and human food. Explain how rabbits have special features, such as long teeth, to help them eat their food, and ask children to choose from a list of foods those they think rabbits would eat and those they think rabbits can't eat.
Looking at rabbits jumping is a good way to introduce children to the concept that different physical characteristics allow humans and animals to do different things.
Show children a live rabbit hopping around (or a video of this). Ask the children to do their own bunny hops around the classroom, then to suggest some differences between rabbits' bodies and their own bodies, such as rabbits' big ears, and ask what they can do that rabbits can't and vice versa.
Help children understand about different animal coats and learn about their own skins by letting them stroke a rabbit (or feel a fake fluffy alternative). Explain how rabbits' fur keeps them warm. Bring in a selection of different textured fabrics, including furry material, and allow children to feel the different materials and pick the ones that feel most like rabbit fur.
Explain to children that rabbits in the wild live in burrows and use grass and straw to make their beds. If you have access to the countryside, take the children for a walk to look for real rabbit holes. Show them how rabbits build tunnels connecting their nests in a warren. Help children make a collage by giving them paper and having them each draw their own rabbit on a nest. Give them some straw to stick onto their pictures. Then mount all their pictures on a large sheet or card and draw tunnels connecting the different nests to create a "warren."