ParekeetFilter: Well, now I know that my birds (Buster and Keaton) are male and female. Having caught them getting it on a few times recently, I'm wondering what to expect! Internets don't help much, surprisingly. More after the jump... [more inside]
posted by Guy_Inamonkeysuit on Feb 11, 2008 - 15 answers

Help me find the sociological terms for some ideas related to dating. [more inside]
posted by philosophistry on Jul 23, 2007 - 24 answers

SpermFilter: Any reason not to give away my seed? [more inside]
posted by dhammala on Nov 20, 2005 - 19 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

It's easy to tell when a species has gone extinct. How do you tell when a new species has evolved? Are there any criteria besides not being able to mate with the former species?
posted by ph00dz on Mar 2, 2004 - 24 answers