| Men's murky motives for romance Women are more likely to be spoiled by their partners around the time of ovulation, researchers find pheedo.com |
High hormone levels in women linked to unfaithfulness Young women who produce naturally high levels of oestrogen rate themselves as more attractive and may be more likely to "trade up" their partners feeds.newscientist.com |
Don't blame early sex on dad's absence The age of a person's first sexual experience tallies with their genetic makeup – not just with whether their parents have split up feeds.newscientist.com |
Curious liaisons: Nature's weirdest sex lives Meet monkeys that father their siblings' kids, insects that embrace sexual diseases – and the chaste beasts that haven't done it for 80 million years feeds.newscientist.com |
Bumpology: Choosing the sex of your child Can you influence your baby's sex before conception? New Scientist separates fact from fiction feeds.newscientist.com |