Just in case youd like to know: Alpaca sex is weird, biologically speaking.
The research was led by scientists from Mount Holyoke College in Massachusetts.
They also worked with a researcher from the North American Camelid Studies Program, part of the largerNunoa Project.
Three alpacas.Image: Rita_Kochmarjova (Shutterstock)
Theyre primarily raised for their soft fleece, but can be used as meat, too.
Even in these animals, however, the penis seems to only penetrate the vagina.
But alpaca breeders have noticed that male alpacas thrust very far into their female partners during mating.
These females were compared to those who hadnt been recently mounted by males.
Even within an hour, the team was able to find sperm inside the oviducts of the females.
The entire female reproductive tract interacts with the penis, functioning like a vagina.
Thus a peculiar copulatory mode in alpaca may improve the odds of successful fertilization and pregnancy, they wrote.
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