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Observation and Quantification of Mating Behavior in the Pinewood Nematode, Bursaphelenchus xylophilus
09:55

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Published on: December 25, 2016

Fellatio by fruit bats prolongs copulation time.

Min Tan1, Gareth Jones, Guangjian Zhu

  • 1Guangdong Entomological Institute, Guangzhou, China.

Plos One
|October 29, 2009
PubMed
Summary
This summary is machine-generated.

Female fruit bats engage in fellatio during mating, significantly increasing copulation duration. This oral sex behavior in bats, rarely documented in animals, may serve multiple functions, warranting further research.

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Area of Science:

  • Zoology
  • Animal Behavior
  • Reproductive Biology

Background:

  • Oral sex is common in humans but rare in other animal species.
  • Fellatio has been documented in bonobos, primarily as juvenile play behavior.
  • The short-nosed fruit bat (Cynopterus sphinx) exhibits a unique mating system where males roost with multiple females.

Purpose of the Study:

  • To document and analyze the occurrence and function of fellatio in the short-nosed fruit bat (Cynopterus sphinx).
  • To investigate the relationship between fellatio and copulation duration in this species.
  • To propose hypotheses for the evolutionary significance of fellatio in C. sphinx.

Main Methods:

  • Observational studies of Cynopterus sphinx during copulation.
  • Recording and quantifying the duration of fellatio behavior.
  • Correlating fellatio duration with copulation duration.

Main Results:

  • Female short-nosed fruit bats engage in fellatio during copulation, licking the base or shaft of the male's penis.
  • A positive correlation was found between the duration of fellatio and the overall copulation duration.
  • Mating pairs exhibited significantly longer copulation times when fellatio was present.

Conclusions:

  • Fellatio in Cynopterus sphinx is associated with extended copulation, suggesting a functional role beyond simple foreplay.
  • The behavior may influence reproductive success, though its precise function requires further investigation.
  • Four non-mutually exclusive hypotheses are proposed to explain the occurrence of fellatio in this bat species.