Describe commensalism giving two examples.

Answer: Commensalism is an interaction between two species in which one species benefits and the other is neither benefited nor harmed (+, 0).

Examples:

1. An orchid growing as an epiphyte on a mango branch gets support and light; the mango tree is not affected.
2. Barnacles growing on the back of a whale get transport and new feeding areas; the whale is not affected.
3. Cattle egret feeds near grazing cattle: the moving cattle disturb insects from the grass, which the egret catches; the cattle neither gain nor lose.
4. Clown fish living among the stinging tentacles of a sea anemone gets protection from predators.