They can grow to be as long as 13 feet and can weigh more than three tons. Diet Rhinos at the zoo eat carrots, alfalfa, oranges, and apples. Conservation Rhinos are endangered for many reasons. There are fewer than 11,000 rhinos left in the wild, mostly because of the illegal trade of rhino horn. The Knoxville Zoo has one of the most successful rhino breeding programs in the United States.
Rhinos have poor eyesight, but possess an excellent sense of smell.
When a rhino detects danger, all the members of the group will stand in a circle with their horns pointing outward. Information and photos provided by the Knoxville Zoo.