It is a subspecies of the black rhinoceros. The pattern of courtship is most similar to that of the black rhinoceros. The riverbeds further inland are home to baboons, giraffes, lions, black rhinoceros and springbok. Currently home to Black rhinoceros and river hippopotamus. Like the Black rhinoceros it has a prehensile lip. Game such as springbok, gemsbok and the endangered south-central black rhinoceros can be found here. The longest known black rhinoceros horn measured nearly in length. It has substantially increased the populations of the southern black rhinoceros and southern white rhinoceros. Competition with elephants is causing the black rhinoceros to shift its diet. S88T in the black rhinoceros, was a candidate that might adversely affect HFE function. Black rhinoceros face problems associated with the minerals they ingest. The western black rhinoceros was once common but is now extinct. Even heavier prey, such as black rhinoceros ("Diceros bicornis"), have been killed by crocodiles. An adult black rhinoceros stands high at the shoulder and is in length. The black rhinoceros alters its selectivity with the absence of the elephant.