The vocalization produced by a female cat during copulation is a distinctive and often startling sound. This high-pitched cry is a direct result of the male cat’s barbed penis stimulating the female’s vaginal wall. The barbs, small spines made of keratin, scrape the vaginal lining upon withdrawal. This action induces ovulation in the female cat, as cats are induced ovulators, meaning they do not release eggs until stimulated by mating.
This induced ovulation is essential for successful reproduction in felines. The scraping action and subsequent vocalization ensure the release of eggs, maximizing the chances of fertilization. Historically, this mechanism has been crucial for the continuation of wild feline populations, where mating opportunities might be infrequent. It is a highly efficient reproductive strategy.