A bull is a big male cow. 
A bull is a big male cow. 

A bull is an adult male of the cattle species. 

Bulls are often much heavier than cows. Most bulls have a hump on their shoulders. Some bulls have horns, but others are polled. Polled means they do not grow horns naturally. 
Bulls can be very aggressive. People must be careful when they are near them. Farmers sometimes use a ring in the nose to help lead them. 
Many people think the color red makes bulls angry. This is not true. Cattle are red-green color blind. They react to the movement of a cape instead. Bulls have been important to humans for a long time. They appear in cave paintings from 17,000 years ago. 
A bull is an adult male of the species Bos taurus. 

Bulls have special bodies that help them lead a herd. They have thick bones and very large feet. Their necks are very muscular to help them in fights. They also have large heads with bony ridges over their eyes. 
Humans have lived alongside bulls for a very long time. We can see them in cave paintings that are 17,000 years old. 
There are many important facts to know about how bulls live. An adult bull can weigh between 1,000 and 2,000 pounds. 
Working with bulls can be a very hard job. They can be aggressive and unpredictable, especially dairy breeds. 
A bull is an intact adult male of the species Bos taurus. 
The physical anatomy of a bull is built for strength and dominance. They possess thicker bones and larger feet than cows. Their necks are highly muscular, and they often feature a hump on their shoulders. A bull's head is large and bony, featuring protective ridges over the eyes. 
Reproductive biology is a key aspect of a bull's life cycle. Bulls typically become fertile around seven months of age. Their fertility level is closely linked to the size of their testicles. Scientists and farmers can estimate fertility by measuring the circumference of the scrotum. For a young bull, a certain measurement indicates fertility, while a fully adult bull may exceed much larger dimensions. 
Managing bulls requires specialized knowledge due to their temperament. Most adult bulls weigh between 1,000 and 2,000 pounds.
To maintain safety, humans use several specialized management tools. One traditional method involves placing a copper ring through the septum of the bull's nose. 
Modern technology has changed how bulls are used in agriculture. Many dairy farmers now use artificial insemination rather than keeping live bulls on the farm. This process involves removing semen from the bull and storing it in canisters of liquid nitrogen. 
Bulls have also played a massive role in human culture and history. We can find evidence of their importance in cave paintings that are 17,000 years old. 
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