Cooperatively breeding cichlid fish adjust their testis size but not sperm traits in relation to sperm competition risk

Satoshi Awata, Tomohiro Takeyama, Yoshimi Makino, Yuko Kitamura and Masanori Kohda

Behavioural Ecology and Sociobiology

62

1701

1710

https://doi.org/10.1007/s00265-008-0598-0