海量图书期刊资源，随时随地畅享阅读乐趣
Cooperatively Breeding Cichlid Fish Adjust Their Testis Size but Not Sperm Traits in Relation to Sperm Competition RiskSatoshi Awata, Tomohiro Takeyama, Yoshimi Makino, Yuko Kitamura and Masanori Kohda · Behavioral Ecology and Sociobiology · 2008