Welcome back to the 73rd episode of "Have You Herd About Animals?" and the episode is on RHINOOOOOOOOOOO'S. 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. There are currently five different species of rhino—two in Africa and three in Asia. All rhinos are famed for their horns. Some species have one horn, while others have two.

Rhinoceros horn is made of keratin, the same material as human fingernails, and they grow continuously throughout a rhino’s life. Like fingernails, rhinoceros horns can be trimmed without discomfort or pain.

Despite two rhino species mentioning colours (black rhino and white rhino), all rhinos are grey. They range in size from 600-kilogram Sumatran rhinos to 3,500-kilogram white rhinos.

Despite their large size, rhinos are herbivores—they only eat plant matter. They make up five of only nine remaining megaherbivore species left on Earth. Their exact diet depends on their habitat. 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.