Angus cattle are a breed of cattle much used in beef

Beef

Beef is the culinary name for meat from bovines, especially domestic cattle. Beef can be harvested from cows, bulls, heifers or steers. It is one of the principal meats used in the cuisine of the Middle East , Australia, Argentina, Brazil, Europe and the United States, and is also important in...

 production. They were developed from cattle native to the counties of Aberdeenshire

Aberdeenshire (historic)

Aberdeenshire or the County of Aberdeen is a registration county of Scotland. This area is also a lieutenancy area.Until 1975 Aberdeenshire was one of the counties of Scotland, governed by a county council from 1890...

 and Angus

Angus

Angus is one of the 32 local government council areas of Scotland, a registration county and a lieutenancy area. The council area borders Aberdeenshire, Perth and Kinross and Dundee City...

 in Scotland, and are known as Aberdeen Angus in most parts of the world.

They are naturally polled (do not have horns) and solid black or red, although the udder

Udder

An udder is an organ formed of the mammary glands of female quadruped mammals, especially ruminants such as cattle, goats, sheep and deer. The udder is a single mass hanging beneath the animal, consisting of pairs of mammary glands...

 may be white. There have always been both red and black individuals in the population, and in the USA they are regarded as two separate breeds - Red Angus and Black Angus.