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The Weird Sex Lives of Bluegills

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When it comes to the mating game, fish have some of the strangest ways of thwarting the competition.


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To learn more about this topic, start your googling with these keywords:
Alternative mating strategy: a strategy used by male or female animals, often with distinct phenotypes, that differs from the prevailing mating strategy.
Dependent selection: an evolutionary process by which the fitness of a phenotype or genotype depends on the phenotype or genotype composition of a given population.


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Cameron Duke | Script Writer, Narrator and Director
Arcadi Garcia i Ruis | Illustration, Video Editing and Animation
Nathaniel Schroeder | Music

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REFERENCES
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Dominey, Wallace J. “Female Mimicry in Male Bluegill Sunfish—a Genetic Polymorphism?” Nature, vol. 284, no. 5756, Apr. 1980, pp. 546–548, https://doi.org/10.1038/284546a0

“Evolution of Alternative Reproductive Strategies: FrequencyDependent Sexual Selection in Male Bluegill Sunfish | Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences.” Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences, 2022, royalsocietypublishing.org/doi/10.1098/rstb.1991.0033

Gross, Mart R. “Alternative Reproductive Strategies and Tactics: Diversity within Sexes.” Trends in Ecology & Evolution, vol. 11, no. 2, Feb. 1996, pp. 92–98, https://doi.org/10.1016/01695347(96)...

Gross, Mart R. “Sneakers, Satellites and Parentals: Polymorphic Mating Strategies in North American Sunfishes.” Zeitschrift Für Tierpsychologie, vol. 60, no. 1, 12 Jan. 1982, pp. 1–26, https://doi.org/10.1111/j.14390310.1...

Jukema, Joop, and Theunis Piersma. “Permanent Female Mimics in a Lekking Shorebird.” Biology Letters, vol. 2, no. 2, 10 Jan. 2006, pp. 161–164, https://doi.org/10.1098/rsbl.2005.0416

Neff, B. D. “Genetic Paternity Analysis and Breeding Success in Bluegill Sunfish (Lepomis Macrochirus).” Journal of Heredity, vol. 92, no. 2, 1 Mar. 2001, pp. 111–119, https://doi.org/10.1093/jhered/92.2.111

Neff, B. D. “Sperm Investment and Alternative Mating Tactics in Bluegill Sunfish (Lepomis Macrochirus).” Behavioral Ecology, vol. 14, no. 5, 1 Sept. 2003, pp. 634–641, https://doi.org/10.1093/beheco/arg032

Neff, Bryan D., and Erik I. Svensson. “Polyandry and Alternative Mating Tactics.” Philosophical Transactions of the Royal Society B: Biological Sciences, vol. 368, no. 1613, 5 Mar. 2013, p. 20120045, https://doi.org/10.1098/rstb.2012.0045

Neff, Bryan. Personal Communication

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