Some flatworms, for instance these pretty Pseudobiceros hancockanus, engage in penis fencing. Both individuals are hermaphrodites, i.e., have both male and female organs. The penis is white, pointed and two-headed. Both individuals are trying to inseminate the other. The one who is inseminated has to bear and lay eggs – a more expensive proposition. The one who “won” the fencing bout and did the insemination can move on and fence some other guys and on and on, “fathering” many progeny until happenning onto a better fencer, getting inseminated, and spending the rest of the life as “mother”.
My Homepage
My homepage is at http://coturnix.org. It is temporarily stripped to minimal information, but more will come soon.Grab my RSS feed:
Search This Blog:
Archives
Categories
Recent Comments:
Bora Zivkovic on Morning at Triton Angie Lindsay Ma on Morning at Triton Linda chamblee on Morning at Triton Jekyll » Blog… on The Big Announcement, this tim… Mike H on The Big Announcement, this tim… -
Recent Posts
Top Posts
@BoraZ on Twitter:
- RT @LeeDugatkin: Jazzed that today is PUBLICATION DAY for Power in the Wild: The Subtle and Not-So-Subtle Ways Animals Strive for Control o… 2 months ago
- RT @LeeDugatkin: Excited that my Nautilus article on Nikolai Vavilov is live. There are very few people in my pantheon of intellectual ido… 1 year ago
- I just published 'Horse Fitness Program' link.medium.com/KO3fJXv9MU 3 years ago
- Horse Fitness Program link.medium.com/KO3fJXv9MU 3 years ago
- @MaryWanless I hope you like this: horselistening.com/2017/12/26/the… and that I cited your thoughts correctly. 4 years ago
- RT @AstronautAbby: @BoraZ Please help spread the word: Full paid Space Camp Scholarship apps due January 15, 2018 @TheMarsGen will give up… 4 years ago
- I just published “The Mental Game Of Riding” medium.com/p/the-mental-g… 4 years ago
- New post: The Mental Game Of Riding horselistening.com/2017/12/26/the… 4 years ago
CC licence
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.PayPal
Sitemeter