The black rhino is a herbivore (which only eats plants). It eats leafy plants, branches, shoots, thorny wood bushes, and fruit. The only predator that rhino has is human, which means that there are no other animals which hunt or eat the rhino other than the human. It means that nothing would happen to the food web even though rhino extinct because there are no animal that eats rhino or that rhino eats.