Many species live in complex and hierarchical societies, and the position of leader within these groups is fiercely coveted by many.

Many animals are very territorial. They mark, protect and defend their small nations against invasion, and their survival often depends on this.

The fight for romance and reproduction stimulate the most striking and diverse behaviours of the animal world, ranging from dancing to battling.

The most fundamental ingredient in the recipe for survival is food. Everything else is an accessory, making the fight for food the most significant.

For species that live in packs or pods, family is certainly worth fighting for as the survival of each individual is tied to the success of the group.

Investigate the different reasons that lead animals to fight, from power and territory to family and food.