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| == Auditory Signals == | | == Auditory Signals == |
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| + | * In many species, sexual readiness is accompanied by some form of unique vocalization ('mating call'). |
| + | ** Cows increase bellowing during '''Oestrus'''. |
| + | ** Sows display characteristic grunting associated with '''Oestrus'''. |
| + | ** Queens often 'yeow' repeatedly to call the tom. |
| + | ** Mares and Ewes are comparitively silent. |
| + | * Elevated vocalization alerts/signals to males that sexual readiness is imminent. |
| + | * Auditory stimulus is more useful in long-range stimulation than close discrimination. |