Sex Unsafe sex: why everyone's at it They pay their bills, hold down careers — so why are young people taking risks when it comes to sex? She's no teenager, and I have to admit I'd thought she would know better. Unprotected sex. At one point or another, we've all had it haven't we? Haven't we? I've stopped asking my friends if they've used a condom when we do our regular one-night-stand postmortems, not because it makes me look like a neurotic teenager, but because I know that they haven't. And I have no idea how we, well educated in the dangers of unprotected sex and way past our teens, have got to this stage. I am shocked, when canvassing my friends, that in taking the contraceptive pill I am in the minority. Some friends are using other methods, but others aren't using anything.
Air caption, Alan Black's puppies were instinctive from a bitch conceived using AI Pedigree dog breeders are turning all the rage increasing numbers to artificial insemination. Although what is driving the trade all the rage dog semen - and what achieve does it have on the animals? Alan Black is a breeder of boxer dogs from Coupar Angus. Two and a half years ago, he was faced with a problem. Dr Cattanach thinks he was one of the first people in the UK to try the technique. In the 70s, he collected some semen as of a champion dog, and froze it. It had been frozen for add than 30 years. But it worked - two pups were born.
The Estrous Cycle The estrous cycle is divided into three parts: proestrus, estrus and diestrus. Proestrus starts when the bitch shows her first signs of heat: swelling of the vulva, a blood-tinged vaginal discharge, and attractiveness en route for male dogs. During this time her estrogen level is rising, and her body is preparing for ovulation. This period lasts 9 days on arithmetic mean, with a range of 2 — 22 days. Estrus starts when the bitch solicits and permits mating.