(no subject)

[theweaselking]

Scientists find new kind of flatworm that "swordfights" with their penises, and are hermaphroditic - so the loser of the fight gets penetrated and lays the eggs.

Comments

[ryusen.livejournal.com]

Dueling Penises? I have only one word for that..
LARPers!

[scixual.livejournal.com]

Ah, brings me back to my college days...

[graethorne.livejournal.com]

Taking th Johnson Joust one step further...

[waterspyder.livejournal.com]

There are several species of birds, where the if a male successfully rapes another male bird, the recipient male becomes sterile. It's a mating tactic to knock out the competition.

[theweaselking.livejournal.com]

...shouldn't that select for birds who *don't* become sterile when raped? Pretty damn quickly, at that?

[waterspyder.livejournal.com]

You would think that there would be heavy selective pressure for it. So far they've just seen a great incentive for male birds to stay on top.