Reproductive biology

All three species of file snake appear to have seasonal reproductive cycles, even though they are active year-round in tropical habitats. These snakes are viviparous, and their young are born alive. Gestation begins in the middle of the year, and birth usually occurs in December. Evidence suggests that female snakes do not give birth every year, so the reproductive frequency is less than annual. Little file snakes and Java file snakes reproduce, on average, once every two years. Arafura file snakes reproduce less frequently because of greater cli matic variability and the aridity of the Australian habitat. Litter size averages five for the little file snake, 17 for the Arafura file snake, and 26 for the Java file snake. Information on Java file snakes indicates that larger females produce both larger litters and larger offspring.

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Pregnancy And Childbirth

Pregnancy And Childbirth

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