Dogs are part of a group of hunting animals that include wolves. Dogs have been bred from wild animals to give them special characteristics, such as shape, colour, size and temperament.
Dogs use a sense of smell above other senses. They have thousands of times more scent cells in their noses than humans. Dogs have their eyes to the front, as with other hunters. They also have large front teeth to hold on to prey, as well as sharp front teeth to cut into it, and strong back teeth to crush the food.
Dogs have different stomachs to humans. They do not need to chew their food before they swallow it.
Dogs have special scent glands at the rear, which is why they go there to smell one another. To a dog, that smells nice!
Dogs in the wild hunt in packs, and mostly hunt large plant-eating animals such as deer. That is why dogs like to be in company and do not like being left alone. That is why it is cruel to leave a dog alone for long periods.
Dogs can eat meat and also other kinds of food such as nuts. Most people feed dogs a cereal mixer with dog meat.