by mayflies when they are deciding where to drop their eggs.
* The presence of a female sage grouse that causes males to exhibit a strut pattern display in order to attract the female during breeding season.

Evolutionary advantages

Most behaviors which are both fixed action patterns and occur in more complex animals, are usually essential to the animal's fitness, or in which speed (i.e. an absence of learning) is a factor. For instance, the greylag

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