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Wild group sex (7)
Nephrotome2
![Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 554 W: 60 N: 571]](http://i1.treknature.com/misc/g-g-g.gif) (2127) | Rape on the Marne river.
Suddently mallards came from all over the place and landed next to me. There was a receptive female there and they all wanted to be part of the party. There were 6 on the female (see workshop). The female is raped and she'd beter take a good breath before, as she will be holded under water for quite some time.
At the moment of the pic one male was already finished and two got confused (behind). They didn't know anymore where the female was and were thus fighting for nothing.
Birds have no penis. They will just put their sexual orifices in contact.
There are few expections: ostrush, goose, ducks.
By ducks it is very long (record ever measured 42.5 cm = 16.75 inch) i.e. as long as their body.
Ducks are rapists. Penis Size is related to the competition between males: being able to operate remotely from the female if another male is in the way; being able to deposit the semens further in so that the distance to proceed for the spermatozoid is shorter.
Digression about mammal and human, if I may:
Mammals can be classified in two categories: those with long penises, those with short ones (relatively to the body size). Those two categories can be closely corelated to the behavior, i.e. how the competition between males operate.
- [group 1 - exemple gorillas] If males compete to seduce a female and the female remains with the winner, penises are short, testicles are small and produce few and poor semens.
- [group 2 - exemple sheep] If females breeds with all males around, the penises are longer, testicles bigger and producing large amount of semens rich in spermatozoids. At the contrary to previous group, copulating doesn't means fathership. Spermatozoids much here compete with the ones from other males. Evolutionary pressure would have therefore increase potentiality of males from this group.
What about human then?
Well surprisingly we have features of the two groups: long penis size but semens very poor in spermatozoids. It was speculated that this could be explained by a recent behavior change operated by the human ancestor. Our ancestor would have been from the second group. Then we would have moved to the first group (i.e. male seducing females). Competition between semens was suddently no more. It takes more evolutionary steps to decrease penis size than to drop amount of spermatozoids. So we already lost the amount of spermatozoids but the drop of the penis size is still to happens.
Looking at all other mammals, there is no other exemples of species with alltogether a long penis and so few spermatozoids in the semens.
Shot:
It was very overcast. I quickly swithed to 400 ISO and made the shots. Most were blurred because of the motion.
Thanks for looking.
JM |
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