Rhinoceros (pronounced /raɪˈnɒsərəs/), often abbreviated as rhino, is a group of five extant species of knee-less, odd-toed ungulates in the family Rhinocerotidae. Two of these species are native to Africa and three to southern Asia.

The rhinoceros family is characterized by its large size (one of the largest remaining megafauna), with all of the species able to reach one tonne or more in weight; a herbivorous diet; a thick protective skin, 1.5–5 cm thick, formed from layers of collagen positioned in a lattice structure; relatively small brains for mammals this size (400–600 g); and a large horn. They generally eat leafy material, although their ability to ferment food in their hindgut allows them to subsist on more fibrous plant matter, if necessary. Unlike other perissodactyls, the African species of rhinoceros lack teeth at the front of their mouths, relying instead on their powerful premolar and molar teeth to grind up plant food.

Rhinoceros are killed by humans for their horns, which are bought and sold on the black market, and which are used by some cultures for ornamental or (pseudo-scientific) medicinal purposes. The horns are made of keratin, the same type of protein that makes up hair and fingernails. Both African species and the Sumatran rhinoceros have two horns, while the Indian and Javan rhinoceros have a single horn.

Samuel Joel “Zero” Mostel (February 28, 1915 – September 8, 1977) was an American actor of stage and screen, best known for his portrayal of comic characters such as Tevye on stage in Fiddler on the Roof, Pseudolus on stage and on screen in A Funny Thing Happened on the Way to the Forum, and Max Bialystock in the original film version of The Producers. He was blacklisted during the 1950s, and his testimony before the House Committee on Un-American Activities was well-publicized. He was a Tony Award and Obie Award winner.

Mostel was born to Israel Mostel, an Eastern European Jew, and Cina "Celia" Druchs, also from a Jewish family, who was born in Poland and raised in Vienna. The two immigrated to the United States (separately: Israel in 1898 and Cina in 1908), where they met and married. Israel already had four children from his first wife; he had four more children with Cina. Samuel, later known as Zero, was Israel's seventh child.

It is said that Samuel Mostel got his nickname "Zero" since his parents were not kind with words and always told him that he would only ever amount to "Gournisht," which is Yiddish for "zero" or "nothing." The rest is history.

Gene Wilder (born Jerome Silberman; June 11, 1933) is an American stage and screen actor, director, screenwriter, author and activist.

Wilder began his career on stage, making his screen debut in the TV series Armstrong Circle Theatre in 1962. Although his first film role was portraying a hostage in the 1967 motion picture Bonnie and Clyde, Wilder's first major role was as Leopold Bloom in the 1968 film The Producers for which he was nominated for an Academy Award for Best Supporting Actor. This was the first in a series of collaborations with writer/director Mel Brooks, including 1974's Young Frankenstein, a script which garnered the pair an Academy Award nomination for Best Adapted Screenplay. Wilder is known for his portrayal of Willy Wonka in Willy Wonka & the Chocolate Factory (1971) and for his four films with Richard Pryor: Silver Streak (1976), Stir Crazy (1980), See No Evil, Hear No Evil (1989), and Another You (1991). Wilder has directed and written several of his films, including The Woman in Red (1984).