Breeding
Between February and May, females lay between 9 and 25 rubbery eggs in a shallow, dry nest. Usually less than half of the eggs are fertile. Females can produce multiple clutches of eggs in a year. After incubating for about 8 months, the tiny, independent young hatch between October and December.
In captivity, oviposition dates vary. Tulsa Zoo maintains a small herd of Aldabra tortoises and they have reproduced several times since 1999. One female typically lays eggs in November and again in January, providing the weather is warm enough to go outside for laying. The zoo also incubates their eggs artificially, keeping two separate incubators at 81 degrees F and 86 degrees F. On average, the eggs kept at the latter temperature hatch in 107 days.
Read more about this topic: Aldabra Giant Tortoise
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—Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)