#wonderfulworldofnature Rhinos, also known as rhinoceroses, are large herbivorous mammals known for their thick skin and distinctive horns. Blackrhinos are oneof three species of rhinoceros that have two horns, which can vary in shape and size depending on geographical location. Horn size also differs between genders, with males carrying thicker horns and females displaying thinner, longer ones. How manyhorns does a blackrhino have? The blackrhino has two horns made from keratin, the same protein as human fingernails. Like fingernails, horns grow continuously throughout a rhino’s life and can be trimmed without causing pain. Blackrhino at night Credit Maasai Preservation Trust. The filming shows never seen before footage oftherhinos ‘secret night time liaisons’ in which males, females, both young and old gather at a waterhole in in the Kalahari to socialise. Blackrhinos boast two horns, the foremost more prominent than the other. Rhinohorns grow as much as three inches a year, and have been known to grow up to five feet long. Females use their horns to protect their young, while males use them to battle attackers. This was blackrhino territory, the more aggressive ofthe African rhinos, but they were hardly ever seen.Why do rhinos have horns? Rare photos and footage captured of oneoftheworld's rarest animals: the Javan rhino. The blackrhinoceros is small and full of finishes. Help blackrhinoceros eat from her native browsers and her guided shrubs and tree leaves.