| Getting married saps your testosterone Among Kenya's Ariaal people, it's the married men who have lowered levels of the male hormone, not the older men pheedo.com |
How genes might pick our mates for us When picking a mate, Americans seem to seek out new immune genes pheedo.com |
Valentine's Day Special: Making an impression The essence of a sports ground or the whiff of a yacht may not sound like something you would want to dab on your wrists, but, according to perfumers, scents like this are the future of fragrance feeds.newscientist.com |
Has the mystery of sex been explained at last? Biologists have long struggled to explain why most creatures reproduce sexually when they could just clone themselves – now at last it's becoming clear not only why sex evolved, but when feeds.newscientist.com |
For the record • We mistakenly illustrated a story about "pointillist graphics" for computers (3 April, p 18) with a standard polygon image; had it been pointillist it would... feeds.newscientist.com |