The single calf weighs about 3550 kilograms (80110 lb) at birth, and can follow its mother around after just three days. The gestation period for a black rhino is 15 months. ![]() His first calf, Theo, was born in December 2017, and left Toronto in late 2021 for the Greater Vancouver Zoo. The black rhinoceros, black rhino or hook-lipped rhinoceros (Diceros bicornis) is a species of rhinoceros, native to eastern and southern Africa including Angola. This will be the second calf sired by 15-year-old male white rhino, Tom. She is trained to participate in voluntary ultrasound examinations which allowed the Toronto team to confirm the pregnancy and monitor the calf’s early development. A white rhino’s gestation period lasts 425-496 days (approximately 16 months), and staff expect Sabi will give birth some time between early September and late October. Keepers at Taronga Western Plains Zoo are delighted by the news that another Southern White Rhinoceros female is pregnant. “They say it takes a village to raise a child, and at the Toronto Zoo this is certainly the case as we prepare for newborns”. She’ll use that horn to scare off predators like lions and hyenas and will even keep other rhinos away until the calf is a bit bigger. This White rhino mom keeps her young one very close. Rhino moms are pregnant for 15-16 months before giving birth to a single calf. ![]() “We are overjoyed with the news of Sabi’s pregnancy, and it is such a great example of how the various Zoo teams work closely with one another,” says Grant Furniss, Director of Wildlife Care, Toronto Zoo. All five rhino species have a long gestation period. Following continual adjustments in husbandry and diet, Sabi’s behaviour in spring 2022 suggested that her hormonal cycles had switched from the subfertile long cycles to the typical cycle length. Following her arrival in Toronto in 2012 the zoo’s Reproductive Science team identified that she exhibited "long" estrus cycles, which have made conception a significant challenge for her. Toronto Zoo's White Rhino Sabi Is Pregnant! On Mother’s Day weekend Toronto Zoo staff announced their 13-year-old white rhino Sabi is expecting her first calf! While every rhino pregnancy is exciting, Sabi’s is especially so.
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