This is the page of your comments. I got to it by clicking on your username, then clicking comments at the top. Unfortunately, the comments can only be sorted chronologically with the most recent first unless you use something like WeiDai's tool, which can be sorted (but apparently only in descending order, and it doesn't seem to have the -20 comment).
Since you have so few comments, it's relatively easy to look at them all and find it here.
Found it.
The info in the -20 comment is, I believe, accepted as common knowledge by people who study "sexual politics." The different goals have to do with the nine months of discomfort females may have to endure while men have no such risk. Also see http://www.amazon.com/Chimpanzee-Politics-Power-among-Apes/dp/0801886562
I'd hope persons who feel that strongly would post their reasons for objecting but in this case I take what I read as fact.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.