Parasitism, commensalism, mutualism, exist with animals among the different species. |
Cases of commensalism among the Echinodermata are still more rare. |
There are numerous other examples of symbiosis, mutualism, commensalism and parasitism between ray-finned fishes and other groups. |
One example of commensalism involves a small crab that lives inside an oyster's shell. |
Right now, you and I is just commensalism. |
As interactions between species evolve, relationships may shift from antagonism to commensalism to mutualism. |