Guppy Love: The intersexual selection in male guppies (Poecilia reticulata) between a huge caudal fin female and a standard female guppy models

Loretta Lacy, Megan Hays, Trevor Halbach, Eric Bates


Intersexual selection in male guppies (Poecilia reticulata) has been a minor topic over the years and therefore there is not much research behind it. This experiment will be conducted in order to understand what characteristics of a female will cause male guppies to exhibit more courtship behaviors. Using a huge caudal fin true orange female guppy model and a standard size true orange female guppy model, we placed them both into the tank at the same time and observed the male's behavior. RESULTS. DISCUSSION.

Full Text:



French, D.P. 2017. Investigating Biology. 2017 Edition Fountainhead Press. United States.

Dosen, L.D. and R. Montgomerie. 2004. Female size influences mate preferences of male guppies. Ethology. 110:245-255.

Hosken, D.J. and C.M. House. 2011. Sexual selection. Current Biology. 21:62-65.

Roberson, K., S. Gayaldo, H. Osburn, and C. Barnes. 2016. Pectoral fin proportionality and mating behaviors in male guppies. Journal of Introductory Biology Investigations. 5:1-4.

Yoshikawa, T., Y. Ohkubo, K. Karino, and E. Hasegawa. 2016. Male guppies change courtship behavior in response to their own quality relative to that of a rival. Animal Behaviour. 118: 33-37.


  • There are currently no refbacks.