How old do black rhinos get?
Black Rhinos can live 45 years or more in captivity, and generally 30 - 35 years in the wild.
Large prides of lions have killed and ate adult black rhinos. Nile crocodiles in groups can prey on black rhinos. Large clans of spotted hyenas have preyed on black rhinos. Injured and old white rhinos are vulnerable to lion prides and clans of hyenas. Bengal tigers have preyed on old and injured indian rhinoceros. Young indian rhinoceros are prey for bengal tigers, hyenas, and crocodiles. Sumatran tigers and saltwater crocodiles prey on young sumatran rhinoceros.
1)If the Black rhinos and its habits are protected then the other rhino species avoid extinction. 2) People living close to the Black rhinos, kill the black rhinos to make a living. By selling their horns and skin. If the there are no black rhinos then the people will start killing other species causing more and more species to become extinct.