There is a combination between bright neon orange fish and gray fish. The coral reef is starting to crowd with fish.
Survival for the Fittest
The two species in this habitat are bright neon orange fish and gray fish.
The sharks eat fish. They can see the bright neon orange fish very clearly while the gray fish tend to blend in more with the environment around. Therefore, the sharks eat more of the bright neon orange fish more than the gray fish.
Because of the gray fish surviving more than the bright neon orange fish. The fish are most likely to produce more gray fish.