[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Re: Dino sex
At 11:02 AM 7/17/97 +1000, Dann Pigdon wrote:
>Randy King wrote:
>> Nathan Myhrvold wrote:
>> > - The large stiff tails made it hard to get the cloaca of male & female
>> > in close proximity. If the male mounted from the rear, the female's
>> > tail would be in the way. The male's tail is too stiff on most
>> > dinosaurs that it could be twisted vertically and put under the tail.
>> Another alternative used by some animals is to approach back-to-back.
>> flying insects do this. Although, off-hand I can't think of any
>> that do.
>Dogs, foxes, probably most canines, mate back-to-back, a position that
>is ultimately extremely painful for the male since a certain
>sensitive organ has to rotate through 180 degrees. It then swells so
>as the two are locked together for the duration, perhaps to prevent
>other males from forcefully decoupling them before the deed is done.
>I'm not sure such a position would be any less awkward than others
>where dinosaurs were concerned. Any way you look at it the dinosaurian
>tail would have made things more difficult than for mammals, although
>perhaps kangaroos would be the closest mammalian analogy. Certainly
>the position of the cloaca as it is often reconstructed seems to
>point backwards in dinos, so perhaps back-to-back mating can not be
>ruled out entirely.
> Dann Pigdon
> Melbourne, Australia