Sexual intercourse (or coitus or copulation) is principally the insertion and thrusting of the penis, usually when erect, into the vagina for sexual pleasure, reproduction, or both.
How to Sex a Guinea Pig (or Cavy) with lots of photos and different ages from newborns to adults.
The road to a successful relationship is so filled with surprising potholes and dangerous crevasses that it’s kind of amazing the human race …
Test your knowledge with amazing and interesting facts, trivia, quizzes, and brain teaser games on MentalFloss.com.
Choosing your baby’s gender is just an old wives tale, say many of the experts. Others aren’t so sure.
DNA Gender Testing from Consumer Genetics offers a highly reliable and accurate method to predict gender of your baby. Is it a man or teen? In just 7 weeks, post-conception, a woman can know the gender of her baby using this safe and non-invasive DNA Gender test.
Determining your fertility window can challenging, in this blog we discuss, Ovulation predictor kits (OPKs) as a popular method for predicting ovulation.
The XY sex-determination system is the sex-determination system found in humans, most other mammals, some insects (), some snakes, and some plants ().In this system, the sex of an individual is determined by a pair of sex chromosomes.
Signs in man and teen ultrasound pictures hint at the gender of your baby. For example, technicians look for the hamburger sign and the turtle sign.
Is your baby’s heart rate determining gender fact or fiction? Many people follow old wives’ tales about figuring out if their baby is a teen or man. We’ll break down what the research says, including when sex is determined.
