where does a male dog enter a female dog
vagina
title: Dog behavior text: indicated by her standing still with the tail held up, or to the side of the perineum, when the male sniffs the vulva and attempts to mount. This tail position is sometimes called “flagging”. The female dog may also turn, presenting the vulva to the male. The male dog mounts the female and is able to achieve intromission with a non-erect penis, which contains a bone called the "os penis". The dog's penis enlarges inside the vagina, thereby preventing its withdrawal; this is sometimes known as the “tie” or “copulatory lock”. The male dog rapidly thrust into the female for title: Canine penis text: Canine penis Male canids have a "bulbus glandis" at the base of their penises. The penis sometimes emerges from the penile sheath during sexual arousal. During coitus the "bulbus glandis" swells up and results in a 'tie' (the male and female dogs being tied together). Muscles in the vagina of the female assist the retention by contracting. At the time of penetration, the canine penis is not erect, and can only penetrate the female because it includes a narrow bone called the "baculum", a feature of most placental mammals. When the male achieves penetration, he will usually hold the female title: Canine reproduction text: penis is not erect, and only able to penetrate the female because it includes a narrow bone called the "baculum", a feature of most placental mammals. When the male achieves penetration, he will usually hold the female tighter and thrust deeply. It is during this time that the male's penis expands and it is important that the bulbus gland is sufficiently far inside for the female to be able to trap it. Unlike human sexual intercourse, where the male penis commonly becomes erect before entering the female, canine copulation involves the male first penetrating the female, after which swelling of title: Semen collection text: thin latex sleeve ending in a sterile collection tube. The inside of the latex sleeve is lightly lubricated. The male is allowed to sniff a female in estrus. Experienced studs cooperate readily in the process. New studs often require encouragement in the form of manual stimulation, also known as "manual ejaculation". Generally the male will mount the female, and the collector quickly directs the dog's penis into the latex sleeve. The male ejaculates and the semen is collected in the tube. The semen is then drawn up into a long thin pipette. Prior to ejaculation, the penis is massaged inside title: Prairie dog text: female is in estrus include underground consorting, self-licking of genitals, dust-bathing, and late entrances into the burrow at night. The licking of genitals may protect against sexually transmitted diseases and genital infections, while dust-bathing may protect against fleas and other parasites. Prairie dogs also have a mating call which consists of a set of 2 to 25 barks with a 3- to 15-second pause between each one. Females may try to increase their reproduction success by mating with males outside their family groups. When copulation is over, the male is no longer interested in the female sexually, but will prevent