Langerhans, R. Brian, Christopher M. Anderson, and Justa L. Heinen-Kay. 2016. «Causes and Consequences of Genital Evolution».
_____, Craig A. Layman, and Thomas J. DeWitt. 2005. «Male Genital Size Reflects a Tradeoff Between Attracting Mates and Avoiding Predators in Two Live-Bearing Fish Species».
Lankester, E. Ray. 1915.
Larivière, S., and S. H. Ferguson. 2002. «On the Evolution of the Mammalian Baculum: Vaginal Friction, Prolonged Intromission or Induced Ovulation?»
Larkins, C. E., and M. J. Cohn. 2015. «Phallus Development in the Turtle Trachemys scripta».
Leboeuf, Burney J. 1972. «Sexual Behavior in the Northern Elephant Seal
Lee, T. H., and F. Yamazaki. 1990. «Structure and Function of a Special Tissue in the Female Genital Ducts of the Chinese Freshwater Crab
Lehman, Peter. 1998. «In an Imperfect World, Men with Small Penises Are Unforgiven: The Representation of the Penis/ Phallus in American Films of the 1990s».
Lehmann, Gerlind U. C., and Arne W. Lehmann. 2016. «Material Benefit of Mating: The Bushcricket Spermatophylax as a Fast Uptake Nuptial Gift».
_____, James D. J. Gilbert, Karim Vahed, and Arne W. Lehmann. 2017. «Male Genital Titillators and the Intensity of Post-copulatory Sexual Selection Across Bushcrickets».
LeMoult, Craig. 2019. «Baby Anacondas Born at New England Aquarium-Without Any Male Snakes Involved». WGBH News, May 23, 2019. https://www.wgbh.org/news/local-news/2019/05/23/baby-anacondas-born-at-new-england-aquarium-without-any-male-snakes-involved
.Lever, Janet, David A. Frederick, and Letitia Anne Peplau. 2006. «Does Size Matter? Men's and Women's Views on Penis Size Across the Lifespan».
Lewin, Bertram D. 1933. «The Body as Phallus».
Lonfat, Nicolas, Thomas Montavon, Fabrice Darbellay, Sandra Gitto, and Denis Duboule. 2014. «Convergent Evolution of Complex Regulatory Landscapes and Pleiotropy at
Long, John A. 2012
_____, Elga Mark-Kurik, Zerina Johanson, Michael S. Y. Lee, Gavin C. Young, Zhu Min, Per E. Ahlberg, et al. 2015. «Copulation in Antiarch Placoderms and the Origin of Gnathostome Internal Fertilization».
Lough-Stevens, Michael, Nicholas G. Schultz, and Matthew D. Dean. 2018. «The Baubellum Is More Developmentally and Evolutionarily Labile than the Baculum».
Love, Alan C. 2002. «Darwin and