Rhino gestation period in days7/28/2023 ![]() The primary threat faced by all five species of rhinoceros is poaching and illegal trade of their horns. Rhinoceros unicornis: Greater one-horned rhinoceros are rhinos endangered?Īccording to the IUCN, Javan, Sumatran, and black rhinos are critically endangered, greater one-horned rhinos are vulnerable, and white rhinos are near threatened.Dicerorhinus sumatrensis: Sumatran rhinoceros.The two African species of rhinoceros are: The scientific name of the family all five species belong to is Rhinocerotidae. They are essential to their habitats as they help regulate and maintain plant life and grasslands on which many other species depend. While adult rhinos have no natural predators, big cats, crocodiles, and wild dogs often target their calves. They give birth to just one calf at a time every two to four years, and their gestation period can last up to 16 months. As large mammals, all rhinos have slow reproduction rates. Of the African rhinos, black rhinos are solitary and white rhinos are more social, often living in herds. Though it lived at the same time as the woolly mammoth, it’s less well known, and far fewer of its fossils and remains have been found. Rhinos had an ancient ancestor that lived in Siberia during the Ice Age, the woolly rhino. By doing so, they protect their skin from sun and insects and keep themselves cool. ![]() When the sun is at its hottest, they display a behaviour called wallowing-lounging and rolling around in large pits of wet mud. Rhinos mainly feed during the night and cooler hours of the day. For example, white rhinos have evolved square lips to graze on abundant grass, while black rhinos have developed pointed lips to pick leaves and plants. Their exact diet depends on their habitat. They make up five of only nine remaining megaherbivore species left on Earth. They range in size from 600-kilogram Sumatran rhinos to 3,500-kilogram white rhinos.ĭespite their large size, rhinos are herbivores-they only eat plant matter. Like fingernails, rhinoceros horns can be trimmed without discomfort or pain.ĭespite two rhino species mentioning colours (black rhino and white rhino), all rhinos are grey. Rhinoceros horn is made of keratin, the same material as human fingernails, and they grow continuously throughout a rhino’s life. Some species have one horn, while others have two. There are currently five different species of rhino-two in Africa and three in Asia. Rhinos are one of the Big Five animals popular in African safaris, but they also live in Asia and even lived in Europe in the past.
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