Revista de Biología Tropical ISSN Impreso: 0034-7744 ISSN electrónico: 2215-2075

OAI: https://revistas.ucr.ac.cr/index.php/rbt/oai
The persistent embrace of onychophorans: What determines copulation duration in velvet worms?
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Keywords

reproductive mechanism
onychophoran mating
insemination
spermatheca
mecanismo de reproducción
apareamiento de onicóforos
inseminación
espermateca

How to Cite

Monge, J. (2019). The persistent embrace of onychophorans: What determines copulation duration in velvet worms?. Revista De Biología Tropical, (1), Darwin. Retrieved from https://revistas.ucr.ac.cr/index.php/rbt/article/view/36161

Abstract

In the only onychophorans mating that has been photographed, instead of fleeing, the couple remained together despite being manipulated. Why? The duration of copulation in onychophorans is possibly controlled by the female, larger and stronger than the male, probably with the participation of dopamine and γ-aminobutyric acid. Insemination through the body wall can be a male mechanism to overcome female defenses.

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