If you are talking about the cow breed, the Brangus gets it's name from it's two ancestor breeds. The Brangus is the result of a cross-breed between the Brahman and Angus cow, so it is logical to just mix the names of the two.
The cross's name would be considered an F1 Brangus-Hereford cross. The colour would be black with a white face.
Brangus cattle are a stabilized combination of Angus and Brahman. The Brangus cattle are available with a completely black coat or a completely red coat.
The species of a Brangus would likely be something like Bos primigenius taurus indicus, since a Brangus is 3/8 Brahman and 5/8 Angus.
A Brangus bull typically weighs around 2400 lbs, on average.
Bos Primigenius Taurus; this is also the scientific name of all extant cows except zebus.
The United States
Brangus heifers reach sexual maturity at around 15 months of age, so this is a good time to breed them. Brangus bulls can be used by the time they are yearlings (~12 months of age).
Little is known about the early origin of the Brangus breed, they began to develop as early as 1912. The first organization of a Brangus Breeders Association was in 1949. However, the early experimentations was performed at the USDA Experiment Station in Jeanerette, Louisiana.
Brangus cattle can be found all over the USA, Canada, Mexico, Australia, Argentina and South Rhodesia in Africa.
Brangus
Brangus
Angus, Red Angus, Polled Shorthorn, Polled Hereford, Brangus, Red Brangus, Red Poll, are the breeds that I can think of that are born naturally polled.