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A mating system is a way in which a group is structured in relation to sexual behaviour. The precise meaning depends upon the context. With respect to animals, the term describes which。

In this article we first discuss why sexual reproduction exists, and how differences between males and females affect mating systems. We move on to consider the evolution of mate choice, and。

Some mating displays evolve from food-giving behaviours; the male bobwhite quail gives a food call and offers a tidbit to his potential mate. In many birds the food-giving behaviour is。

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