Grass is a producer that gets its energy from the sun. A bunny eats the grass as an herbivore. At night, a wolf eats the bunny as a carnivore, getting some of the energy the bunny obtained from the plant. A bear is an omnivore that eats both fruits and meat, like humans who have flat teeth for plants and sharp teeth for meat. Crows are scavengers that eat the dead wolf, helping decomposer worms break down the body so it can become a plant and restart the cycle.