Can anyone recommend a good book about the evolution of sexual reproduction? [more inside]
posted by shakespeherian on Jul 11, 2009 - 9 answers

Is there scientific evidence that animals have an innate/instinctual urge to reproduce? Is there scientific evidence that it is the same in humans? [more inside]
posted by defenestration on Jul 11, 2007 - 45 answers

I'm about to start my first salaried job, and will therefore have health insurance. My girlfriend has none. We'd like a method of birth control that's safer and more effective than condoms, but neither of us can afford birth control pills out of pocket. As a man, is there any way I can use my health insurance to pay for birth control pills? If not, what are my other options? [more inside]
posted by tweebiscuit on Nov 13, 2005 - 26 answers

Which species of ducks mate for life? My info tells me so far that most do: Mallards, Mandarins, Whistling Ducks, Maned Ducks, not to mention geese and swans. But Emperor Ducks are not monogamous? Any other species? And I've read that a surviving Mallard will "remarry" if its mate dies. Is this true, true for both sexes, and do the other species do the same?
posted by Shane on Jul 6, 2004 - 10 answers