Figure 4

Reproductive organ weights in pheromone exposed and unexposed female opossums. Mean (± SEM) mass of ovaries (top), uteri (middle) and lateral vaginal canals (bottom) in exposed and unexposed females from 90 through 150 days of age (n = 4 or 5 for each age and treatment group). Different superscripts denote age-related differences for unexposed females. Asterisks indicate differences between exposed and unexposed females within an age group (P < 0.05).