Date: 18thOctober, hrs. Location: República 239, University Andres Bello, Santiago Chile. The northern Darwin’s frog (Rhinoderma rufum) and the southern Darwin’s frog (R. darwinii) are the only known amphibian species in which males brood their offspring within their vocal sacs. This is a unique type of parental care among [...]
Sildenafil citrate is a white to off-white crystalline powder with a solubility of mg/mL in water and a molecular weight of .