Publisher Summary This chapter reviews the current knowledge of variation in sperm
morphology over several levels of biological organization: variation within males (both within …

This chapter is intended to cover morphological data on the testis, spermatogenesis,
ultrastructure of spermiogenesis, and the mature spermatozoon in snakes. Though it would …

The role of sperm competition in increasing sperm length is a controversial issue, because
findings from different taxa seem contradictory. We present a comparative study of 25 …

The development of safe and consistent semen collection protocols should be ensured to
understand basic sperm parameters of a species. Electroejaculation has been hypothesized …

Aspects of the reproductive biology of male and female Agkistrodon piscivorus are
described using histological techniques, reviewed, and compared with historical data on A …

Semen quality analysis constitutes a powerful tool to evaluate the fertility potential of males
in threatened species. The Argentine boa constrictor or lampalagua (Boa constrictor …

The ultrastructure of snake sperm has received substantial attention primarily because
snakes exhibit considerable variability in reproductive characteristics between species, with …

The effect of temperature on sperm dynamic parameters in ectotherms in general, and
reptiles in particular, remains poorly understood due to the lack of consistent evidence. As a …

The intent of this chapter is to review the major morphological data on the architecture of the
testis, the histological ontogeny of spermatogenesis, and the ultrastructure of the mature …

Female sexual promiscuity is a prevalent element of mating systems. One consequence of
female sexual promiscuity is that male‐male competition often continues post‐copulation …