male–male competition in species in which the operational s...
phonogram n. a graphic or symbolic representation of a phon...
cisterna n. (pl. cisternae) 1. in anatomy, an e...
Sorry, "dichromatism-dichromacy-dichromasy-dichromatopsia" is not in the Diction...
sign stimulus see releaser.
vas deferens (pl. vasa deferentia) a duct that...