Words similar to opossums
Example sentences for: opossums
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This suggests that age at first estrus varied from 109 to 162 days, depending on pheromone exposure [ 7 ] . However, body mass at first estrus was remarkably close to 60 g in all females, indicating that puberty in opossums, as in most mammals, is dependent on attainment of a threshold body mass.
The people who followed the Lord were called the twelve opossums .
The onset of puberty in female opossums is strongly influenced by pheromonal and, perhaps, other social cues.
67 mm) in superovulated opossums [ 22 ] . This increased size of developing follicles in exposed opossums is similar in magnitude to that seen in the pre-Graafian follicles of rats between diestrus and proestrus [ 23 ] . Prepubertal pine voles exposed to male urine also showed an increase in the number of largest follicles, but with no change in atresia [ 24 ] , as in our study.
Plasma concentrations of estradiol in opossums are low (<15 pg/ml) during anestrus and are elevated (>20 pg/ml) only during estrus [ 15 ] . Mean plasma estradiol concentrations as high as 58 pg/ml have been reported in estrous females [ 25 ] , but a gradual increase in circulating estradiol during pheromonal induction of estrus in opossums has not been described.
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