We are not the only inhabitants of the earth,

The earth does not belong only to humans

From the seas to the deserts,animals face the ongoing threat of cruelty and abuse. Bears are captured and forced to fight dogs. Marine mammals, such as whales and dolphins, get trapped in discarded fishing gear. Wild animals are traded as exotic pets.

We should end the needless suffering of animals. We should influence decision makers to put animals on the global agenda. We should help the world see how important animals are to all of us. We inspire people to change animals’ lives for the better. We should move the world to protect animals.

Bulls are much more muscular than cows, with thicker bones, larger feet, a very muscular neck, and a large, bony head with protective ridges over the eyes. These features assist bulls in fighting for domination over a herd, giving the winner superior access to cows for reproduction.[4] The hair is generally shorter on the body, but the neck and head often have a "mane" of curlier, wooly hair. Bulls are usually about the same height as cows or a little taller, but because of the additional muscle and bone mass, they often weigh far more. Most of the time, a bull has a hump on his shoulders.[5]

In horned cattle, the horns of bulls tend to be thicker and somewhat shorter than those of cows,[6] and in many breeds, they curve outwards in a flat arc rather than upwards in a lyre shape. It is not true, as is commonly believed, that bulls have horns and cows do not: the presence of horns depends on the breed, or in horned breeds on whether the horns have been disbudded. (It is true, however, that in many breeds of sheep only the males have horns.) Cattle that naturally do not have horns are referred to as polled, or muleys.[7]

Castrated male cattle are physically similar to females in build and horn shape, although if allowed to reach maturity, they may be considerably taller than either bulls or cows, with heavily muscled shoulders and necks -- Wikipedia --