Because that is the way they have evolved. A cat's senses, particularly eyesight, is very sensitive to motion. Cats like to ambush prey, meaning they will creep up as close as possible, then pounce. Movement of the prey shows where it is, and allows the cat to make a accurate pounce.
Cats and dogs will chase a laser that is shined and moved around on the floor.
Both. Depending on the dog and cat, dogs can chase cats, but some feisty or territorial cats are more than capable in chasing away a dog.
Any dog breed can chase cats.
they actually like to chase mice
All dogs chase cats.
Dogs will chase things that run, that is instinct.
Dogs are scared of lightning because it is loud and it is bright. Some dogs don't like loud noises. Some dogs do though like the shooting dogs cause they have to be used to the gun shot.
Dogs sometimes chase after cats because it is their nature. They are descendants of wolves. But, the cat will protect itself and might scratch the dog. Sometimes the cat will fight back and it might not end well for the dog.
no, dogs just chase just bout anything that moves
Actually, most dogs don't. Out of the dogs that I've been through (2) they haven't chased one of our cats. If the dog cats irritated by the cat, it might chase it. Otherwise, the dog and cat can become pretty good friends.
The same reason they chase cats and squirrels and mice. Dogs are predators. Predators chase things to kill and eat.
dogs chase cats around because they are two different types of animals!