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Reddish male swallows have short sperm |
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| Authors: | Hasegawa Masaru Arai Emi Nakamura Masahiko |
| Institution: | 1.Department of Environmental Science, Ishikawa Prefectural University, Nonoichi, Ishikawa, 921-8836, Japan ;2.Department of Evolutionary Studies of Biosystems, Sokendai (The Graduate University for Advanced Studies), Hayama-machi, Kanagawa, 240-0115, Japan ;3.Laboratory of Animal Ecology, Department of Biology, Joetsu University of Education, 1 Yamayashiki-machi, Joetsu-shi, Niigata, 943-8512, Japan ; |
| Abstract: | Journal of Ethology - Sexual selection favors the evolution of pre-copulatory sexual traits such as ornamentation and post-copulatory sexual traits such as long sperm, but the interrelationships of... |
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