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Abstract Pleistocene fragmentation of the Amazonian rainforest has been hypothesized to be a major cause of Neotropical speciation and diversity. However, the role and even the reality of Pleistocene(More)
Crotaline snakes present delayed fertilization and sperm storage because secondary vitellogenesis is not completed by the time of mating. The release of vitellogenesis and synchrony between ovulation(More)
Crotaline snakes store sperm by means of a uterine musculature twisting (UMT). We investigated the influence of plasma levels of estradiol and progesterone and vasotocinase cystine aminopeptidase(More)
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