Do hosts and guests share their food?
Sometimes, two animals share a home and food. Crabs dig holes in the seabed and the arrow goby fish burrows internal these holes. The fish performs housekeeper through feeding off the crabs’ waste. Another instance is the hermit crab, which alternatives up and locations a tiny sea anemone on its back. The anemone, with its stinging tentacles, protects the crab from other animals. In return, the anemone gets free food when the crab eats.
