The same reason they chase cats and squirrels and mice. Dogs are predators. Predators chase things to kill and eat.
peacock feather
Many dogs will. You can train them not to but most dogs instinct is to chase critters like squirrels.
Because they're dogs and dogs like to chase things.
No.
Dogs will chase things that run, that is instinct.
no, dogs just chase just bout anything that moves
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.
snakes man cats dogs
Dogs,snakes,spiders and lizards.
Chase Utley's dog is named Jack
Any dog breed can chase cats.
All dogs chase cats.