A horn is a pointed projection of the skin on the head of various animals, consisting of a covering of horn (keratin and other proteins) surrounding a core of living bone. True horns are found mainly among the ruminant artiodactyls^{[citation needed]}, in the families Antilocapridae (pronghorn) and Bovidae (cattle, goats, antelope etc.). One pair of horns is usual, but two or more pairs occur in a few wild species and in a few domesticated breeds of sheep. Polycerate (multi-horned) sheep breeds include the Hebridean, Icelandic, Jacob, Manx Loaghtan, and the Navajo-Churro. Partial or deformed horns in livestock are called scurs.

Horns usually have a curved or spiral shape, often with ridges or fluting. In many species only males have horns. Horns start to grow soon after birth, and continue to grow throughout the life of the animal (except in pronghorns, which shed the outer layer annually, but retain the bony core). Similar growths on other parts of the body are not usually called horns, but spurs, claws or hoofs, depending on the part of the body on which they occur.

Horn may refer to:

Anatomy (from the Ancient Greek ἀνατέμνειν, anatemnein: ana, "separate, apart from", and temnein, "to cut up, cut open") is a branch of biology and medicine that is the consideration of the structure of living things. It is a general term that includes human anatomy, animal anatomy (zootomy), and plant anatomy (phytotomy). In some of its facets anatomy is closely related to embryology, comparative anatomy and comparative embryology, through common roots in evolution.

Anatomy is subdivided into gross anatomy (or macroscopic anatomy) and microscopic anatomy.Gross anatomy is the study of anatomical structures that can, when suitably presented or dissected, be seen by unaided vision with the naked eye.Microscopic anatomy is the study of minute anatomical structures on a microscopic scale. It includes histology (the study of tissues), and cytology (the study of cells). The terms microanatomy and histology are also sometimes used synonymously (in which case the distinction between histology and cell biology isn't strictly made as described here).

Edward Kennedy "Duke" Ellington (April 29, 1899 – May 24, 1974) was an American composer, pianist, and big-band leader. Ellington wrote over 1,000 compositions. In the opinion of Bob Blumenthal of The Boston Globe "In the century since his birth, there has been no greater composer, American or otherwise, than Edward Kennedy Ellington." A major figure in the history of jazz, Ellington's music stretched into various other genres, including blues, gospel, film scores, popular, and classical. His career spanned more than 50 years and included leading his orchestra, composing an inexhaustible songbook, scoring for movies, composing stage musicals, and world tours. Several of his instrumental works were adapted into songs that became standards. Due to his inventive use of the orchestra, or big band, and thanks to his eloquence and extraordinary charisma, he is generally considered to have elevated the perception of jazz to an art form on a par with other traditional genres of music. His reputation increased after his death and the Pulitzer Prize Board bestowed on him a special posthumous honor in 1999.

Siegfried & Roy are two German-American former entertainers who became known for their appearances with white lions and white tigers.

From 1990 until an injury ended their stage careers on October 3, 2003, the duo formed the show "Siegfried & Roy at the The Mirage Resort and Casino", which was regarded as the most-visited show in Las Vegas, Nevada, USA. The magic word of the duo was "SARMOTI" (Siegfried and Roy, Masters of the Impossible").

Siegfried Fischbacher (born June 13, 1939, Rosenheim, Bavaria) and Roy Horn (born October 3, 1944, Nordenham, Oldenburg) were born and grew up in Germany. They immigrated to the United States and became naturalized citizens.

Siegfried is a traditional magician (illusionist), while Roy grew up among exotic animals.

They met in 1959 when they both found work on a German ocean liner. Siegfried was a cabin steward and Roy a waiter. Siegfried began performing magic for some of the passengers, eventually being allowed to have his own show, with Roy as his assistant. Unknown to the crew, Roy had smuggled a cheetah named Chico aboard the vessel (Penn Jillette suggested on his radio show that it was an ocelot). Roy had come to know Chico from his frequent visits to the Bremer Zoo in Germany. After developing their show they were given an engagement in Las Vegas. In 1972 they received an award for the best show of the year. In 1990 they were hired by Steve Wynn, the manager of The Mirage, for an annual guarantee of $57.5 million. In 2001, they signed a lifetime contract with the hotel. The duo has appeared in around 5,750 shows together, mostly at The Mirage. Their long-running illusion and magic act closed October 3, 2003 (Roy's birthday) after Roy was severely injured by Montecore, one of the act's tigers, during a performance.