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| == Ejaculation == | | == Ejaculation == |
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| + | == Dog == |
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| + | * Bitch in Oestrus spots bloody fluid just before the receptive stage. |
| + | * Male identifies the female. |
| + | ** Dogs are very aware of a bitch in oestrus and can detect them from 500-600 meters away. |
| + | * Bitch adopts receptive posture ('stands') |
| + | * Dog mounts and thrusts to achieve intromission. |
| + | * Intromission with a partially erect penis aided by the '''Os Penis''' |
| + | * Vulval erectile tissue of the bitch grips the penis. |
| + | * Penis achieves full erection (the ''''Tie'''') |
| + | * Dog then turns to face the opposite direction (the ''''Turn'''') |
| + | * Ejaculation |
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| + | == Cat == |