![]() ![]() Females ovulate once every 28 days, only to mate one to two days out of every cycle. They urinate in addition to whistling and defecating in order to indicate their readiness to mate. They will charge any animal they believe to be interfering, including a rhinoceros. This natural defense mechanism allows rhinoceroses to protect their territory. Adult predators are incapable of preying on animals that live alone. The two African species are the white rhinoceros and the black rhinoceros. There are several rhinoceros species found in Southeast Asia, including the Sumatran, Javan, and Indian species. The Indian rhinoceros ( Rhinoceros unicornis) is the second species that only has one horn. How many calves do rhinoceros have? How long are rhinoceros pregnancies? How frequently do they reproduce? Find out everything there is to know about this majestic animal. The long pregnancy is necessary to allow the calf to grow to its full size.ĭue to the alarming decline of rhinoceros populations around the world, their reproductive ability has taken center stage. Rhino calves weigh between 40 and 80 pounds at birth and are about 3 feet tall. The gestation period for a rhino is 16 to 18 months, and the animal gives birth to a single calf. ![]() The white rhino population is also decreasing because of the continued increase in poaching for their horns for the black market trade.Īs of today, there are less than 16,000 existing white rhinos.A rhino’s pregnancy lasts 17 months because of the animal’s large size. White rhinos in the wild are listed as “Near Threatened” on the International Union for Conservation of Nature (IUCN) Red List of Threatened Species. “She has definitely been enjoying the added attention, particularly the belly scratches she receives from guests participating in behind-the-scenes Wild Encounters tours,” the zoo said. The zoo has yet to name the baby nor has revealed when it will be announced. Guests who are familiar with Sabi will notice her “baby bump” starting to show as the baby continues to grow over the summer. “Sabi was an incredible aunt to Theo, and we look forward to seeing her maternal instincts with her own little calf!” the zoo said.Ĭurrently, Sabi is in her third trimester. The 15-year-old white male rhino’s first calf, Theo, was born in December 2017 and moved to the Greater Vancouver Zoo in late 2021. The zoo says this will be his second calf. In the meantime, she will undergo voluntary ultrasound examinations, so the team can monitor the calf’s early development.Īs per the calf’s father, Tom, this isn’t his first rodeo as a father. The zoo says a white rhino’s gestation period lasts 425 to 496 days or approximately 16 months, which means Sabi is expected to give birth between early September and late October. In case you missed it, 13-year-old white rhino Sabi is expecting her first calf □ Learn more: /QklpcpVjvL- The Toronto Zoo May 12, 2023 ![]() “The Toronto Zoo Wildlife Care and Reproductive Science teams are thrilled that the breeding introductions with male Tom in summer 2022 were successful,” the zoo said. Through changes in diet and husbandry, the wildlife care and reproductive science teams helped Sabi switch to the typical cycle length as of spring 2022. Compared to the typical 30-day female fertile cycle, Sabi’s was 70 days in length. The zoo says when she arrived in Toronto in 2012, its reproductive science team found that Sabi exhibited “long” estrus cycles which made conception a significant challenge. 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 - Facilities and Maintenance teams will soon begin making modifications so that we are baby-ready!” he added. “The cooperation between Wildlife Care, Wildlife Science, Nutrition, and Veterinary teams was instrumental in getting us to this point in Sabi’s pregnancy. ![]() A post shared by Toronto Zoo 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,” Director of Wildlife Care at Toronto Zoo Grant Furniss said in a media release on May 12. ![]()
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