yes.
no
commensalism
A bird living on the top of a hippo, or a bird living in a cactus is an example of commensalism...:D
alligator and alligator bird
the bird sat on the cow
There is not a elephant bird living.
From elephant dung.
When a bird shelters in a tree, it is a form of commensalism. This is where the bird benefits but the tree is unaffected.
An example of commensalism in the grassland is when a bird builds its nest in a tree, using materials such as twigs and leaves, without harming the tree. The bird benefits by having a safe place to raise its young, while the tree is unaffected by the bird's presence.
It's Called A Tic Tic Bird It Cleans All The Tics Of The Elephant
the bird cleans and grooms the elephant while the elephant provides the bird with food (bugs, etc)
probably NOT