Zombies Reshape the Ecosystem

What would happen if zombies became an integral part of the natural ecosystem?

In this unique scenario, imagine a world where the presence of zombies has somehow led to a balanced environment. What kind of evolutionary adaptations could come into play to create such an effect? Consider how other forms of life, from plants to animals, would adjust to this new reality. Are there ‘zombie plants or animals’? What would humanity’s role in such a scenario look like? This prompt encourages exploration of environmental themes, biology, and adaptability walls in an unusual context.