| The love delusion When is it clever to be a biased, self-deceiving liar? When you're playing the dating game… pheedo.com |
Love is the drug for male finches Some people get their kicks from drugs and alcohol, but male birds seem to get equally high while serenading a mate feeds.newscientist.com |
Hunks get more sex, but there's a price to pay Beefcakes may be able to attract women by rippling their muscles, but all that He-Man brawn comes at a biological cost, finds a new study feeds.newscientist.com |
Women with good genes may have more sexual partners Female students with a genetically diverse immune system said they had sex with more people than their peers did feeds.newscientist.com |
Post-coital warfare: insect semen kills rival sperm Males of some social insects carry on the fight for females after insemination: their seminal fluid harms sperm of other males, but not their own feeds.newscientist.com |