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Tiger snakes give birth to 20 to 30 live young; an exceptional record was made of 64 from an eastern female. [8] They usually mate in spring when it is in the warmer seasons and will give birth to live young in summer.
The boa constrictor is a large snake, although it is only modestly sized in comparison to other large snakes, such as the reticulated python, Burmese python, or the occasionally sympatric green anaconda, and can reach lengths from 3 to 13 ft (0.91 to 3.96 m) depending on the locality and the availability of suitable prey. [16]
Rubber boas are viviparous (give birth to live young) and can have up to 9 young per year, although litters of 1–5 are much more common. Rubber boas are less prolific than many snakes found in the US and Canada with females only reproducing on average once every four years.
A Brazilian rainbow boa constrictor kept at a school in England gave birth to 14 babies last month, despite having no contact with another snake for nearly a decade.
Ronaldo, a 6-foot Brazilian rainbow boa constrictor kept at a school in England, was thought to be male — until the snake gave birth to 14 babies last month.
Like other natricine snakes such as water snakes (genus Nerodia) and garter snakes (genus Thamnophis), S. dekayi is a viviparous species, giving birth to live young. [13] Sexual maturity is reached at two to three years. Mating takes place in the spring, after snakes emerge from brumation. Between 3 and 41 young are born in late summer. [14]
Possibly being the largest subspecies of gopher snake on average, mature specimens can have an average weight in the range of 1–1.5 kg (2.2–3.3 lb), though the heavier known specimens can attain 3.6–4.5 kg (7.9–9.9 lb), with larger specimens being quite bulky for a colubrid snake.
Although many kinds of snakes and other reptiles are oviparous (lay eggs), rattlesnakes are ovoviviparous (give birth to live young after carrying eggs inside). [77] The female produces the ova ("eggs") in her ovaries, after which they pass through her body cavity and into one of her two oviducts.