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www.bioexpedition.com/rhinoceros-reproduction

Most male rhinos however, reach sexual maturity in eight years. Females will mate as soon as they become sexually viable, to maximize the number of calves she can birth in her lifetime. Not much is known about certain rhinos ovulation cycles, but it has been confirmed that some do not have set mating seasons.

www.savetherhino.org/thorny-issues/sumatran-rhino-captive-breeding

So the possibilities for future captive breeding of Sumatran rhinos are small, which is why Cincinnati Zoo has decided to breed the Sumatran rhino siblings, Suci and Harapan. There is a strong possibility that unless Suci (and Rosa) are mated soon, they may miss their “biological window” and become infertile.

www.livescience.com/27439-rhinos.html

Facts About Rhinos. ... white rhinos were moved from a zoo in the Czech Republic to a private conservancy in Kenya in the hope that they would breed, ... Though rhinos are often solitary, they do ...

www.rhinoworlds.com/rhinoceros-reproduction

Rhinoceros Breeding. The male Rhinoceros is ready for mating between the ages of 7 and 8 years old. However, if there are other males to compete with it can be much older than that before it is able to find females that are receptive to such advances.

www.answers.com/Q/When_do_rhinos_breed

Despite their similar appearance, rhinos and hippos are not closely related. They do not even belong to the same taxonomic order. It would be about as impossible as trying to breed a pangolin, a ...

www.thedodo.com/people-are-farming-rhinos-1592752412.html

In 2015, 1,175 rhinos in South Africa were killed for their horns - an average of three slaughtered rhinos per day. Meanwhile, at a couple of very odd "farms," also in South Africa, rhinos are being blindfolded and held down while trained veterinary professionals take an electric saw and remove ...

answers.yahoo.com/question/index?qid=20081217093824AAFvvcm

When a female is ready to breed an adult male will join her and they will form a temporary. group. In black rhinos, a pregnancy lasts for 15 months. For white rhinos it is 16 months. A. healthy cow normally produces a calf every 2,5 years. If conditions are very good she may. have a calf every two years.

en.wikipedia.org/wiki/Rhinoceros

The word rhinoceros is derived through Latin from the Ancient Greek: ῥῑνόκερως, which is composed of ῥῑνο-(rhino-, "nose") and κέρας (keras, "horn") with a horn on the nose.The plural in English is rhinoceros or rhinoceroses.The collective noun for a group of rhinoceroses is crash or herd.The name has been in use since the 14th century.

news.mongabay.com/2019/07/when-it-comes-to-captive-breeding-not-all-sumatran...

In 1984, conservationists began catching Sumatran rhinos in the wild for captive breeding. The program, for decades, was a disaster. While the project at first suffered from a lack of knowledge ...