No. Some have white rumps, others have patchy black-and-white rumps. A few have black ones.
They only have large rumps because they are big, if they have large rumps at all, which I doubt.
No. Black Angus cows are all black. You can only get black cows with white faces if they have a sire as a Hereford or traditional Simmental. These cows are called "black baldies" and should never considered as purebred Angus because they are not purebred at all: they are crossbreds.
The West Frisian language is spoken in the Dutch province of Frisia and in a small part of the province of Groningen. The East Frisian language was common in East Frisia, Germany, but is nowadays only spoken by a small population of Saterland, a municipality in the district of Cloppenburg, Germany. Since Saterland Frisian is the only remaining dialect of the East Frisian language, Saterland Frisian is often seen as a langauge itself, or its name is given to the entire East Frisian language. The North Frisian langauge is spoken in the district of North Frisia, Germany, and Helgoland, Germany. The language consists of two groups of dialects and not all dialects are mutually intelligible with each other. The three Frisian languages are not mutually intelligible to each other, but native speakers shouldn't have much difficulties learning one of the other Frisian languages.
Black Angus cows are currently raised in farms all across the United States and can be found the most in plains states rather than the very cold states.
Black, brown, red, white, grey, yellow, orange, and a combination of all seven.
There are black and white cows that have horns. The most commonly known dairy cattle that is black and white is the Holstein breed. All Holsteins are born with the genetics to grow horns. However, majority of cows, as calves, are dehorned days after birth.
Cows use their lips to drink. This is true of all vegetarian animals such as horses, elephants, camels, and giraffes.
Most white with black spots or most black with white spots. However you want to look at it. Some carry a recessive gene that makes them red instead of black. Those are called Red Holstein. Not really creative but effective description.
Troll
You are thinking of the oh-so-popular Holstein dairy cow, which are predominantly black and white. However, not most nor are all cows black and white. Many are brown, grey, black, white, yellow or buckskin, orange, red, and with variations of white in them, such as roan, white-face, speckled, dorsal-striped, etc.
For All the Cows was created on 1995-11-20.
Yes, cows do sleep. They spend about 4 hours a day lying down to rest and sleep, often in short intervals throughout the day and night.