The Romosinuano is a breed of cattle

Cattle

Cattle are the most common type of large domesticated ungulates. They are a prominent modern member of the subfamily Bovinae, are the most widespread species of the genus Bos, and are most commonly classified collectively as Bos primigenius...

 native to Colombia

Colombia

Colombia, officially the Republic of Colombia , is a unitary constitutional republic comprising thirty-two departments. The country is located in northwestern South America, bordered to the east by Venezuela and Brazil; to the south by Ecuador and Peru; to the north by the Caribbean Sea; to the...

. Its name derives from the fact that the breed is polled

Polled livestock

Polled livestock are livestock without horns, of species that normally have them. The term refers both to breeds or strains which are naturally polled through selective breeding and also to naturally horned animals which have been dehorned...

 (romo) and that it originated from the Sinú River

Sinú River

Sinú River , is a river in northwestern Colombia that flows mostly through the Córdoba Department and into the Caribbean. The river is the third most important river after the Magdalena River and the Cauca River in the Caribbean Region. It is born in the Antioquia Department, flowing south to north...

 valley (sinuano). Romosinunao are a criollo

Criollo cattle

Criollo is a group of cattle breeds descended from Spanish stock imported to the Americas, including:* the Argentine Criollo* the Corriente cattle* the Florida cracker cattle* the Pineywoods cattle* the Romosinuano cattle* the Texas Longhorn cattle...

 type, developed from the horned Costeño con Cuernos breed of Spanish origin. It is unclear whether the polled nature of the Romosinuano was due to natural mutation

Mutation

In molecular biology and genetics, mutations are changes in a genomic sequence: the DNA sequence of a cell's genome or the DNA or RNA sequence of a virus. They can be defined as sudden and spontaneous changes in the cell. Mutations are caused by radiation, viruses, transposons and mutagenic...

 or to cross-breeding with European types such as the Angus

Angus cattle

Angus cattle are a breed of cattle much used in beef production. They were developed from cattle native to the counties of Aberdeenshire and Angus in Scotland, and are known as Aberdeen Angus in most parts of the world....

 or Red Poll

Red Poll

The Red Poll is a dual purpose breed of cattle developed in England in the latter half of the 19th century.-Description and uses:The cattle are red, preferably deep red with white only on the tail switch and udder. They are naturally polled...

.

Romosinuano are beef cattle, and are noted for their docile temperament and adaptation to subtropical climates. Romosinuano lines also exist in Costa Rica

Costa Rica

Costa Rica , officially the Republic of Costa Rica is a multilingual, multiethnic and multicultural country in Central America, bordered by Nicaragua to the north, Panama to the southeast, the Pacific Ocean to the west and the Caribbean Sea to the east....

 and Venezuela

Venezuela

Venezuela , officially called the Bolivarian Republic of Venezuela , is a tropical country on the northern coast of South America. It borders Colombia to the west, Guyana to the east, and Brazil to the south...

, and have been imported to the United States for cross-breeding in the hopes of improving cattle production in Florida

Florida

Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...

and similar states.