<正> Stridulatory sound-producing behavior is widespread across catfish families, but some are silent. To understand why,we compared spine morphology and eeotyp
This study investigates the gastroprokinetic effects of motilin and erythromycin A (EM-A) and its potential mechanism in guinea pigs Cavia porcellus in vitro. G
<正> Throughout the animal kingdom there are species that have two or more phenotypic forms or 'morphs', and many ofthese are amphibians. In North Ameri