Lion vs Lion
This competition is between lion vs lion.
Elephant vs Elephant
This competition is between elephant vs elephant.
Rhino vs Rhino
This competition is between rhino v rhino.
Results from niche overlap (use of the same limited resource by two or more species).Some animals will fight to the death for their resources. Some plant species release toxins into the soil that prevent other species from growing nearby, restricting the space of the other species.
Territorial animals defend animals that contain a nest, den or mating site. They defend their territory to get food for their families. Defense rarely creates a fight. Normally there is a display by the animals some how. It can be visual, vocal like in birds singing, olfactory through scent markers such as urination. An example of this is fighting fish. They WILL defend their area to the death.