There are a few reasons why a dog may chase your bike. Some dogs are attracted to the motion, commonly herding dogs chase for this reason (think Border Collies or Australian Shepherds). In this case, the dog is usually attracted to other items in motion like cars or people on roller blades, people running, or other dogs and animals that run. Other dogs are chasing out of aggression in a territorial mode, or could be fearfully aggressive about having a "threat" near them in general. Some dogs may be bored, and a bike or car going by is something to entertain themselves with. In all of these cases, training and exercise can help a dog overcome its desire to chase bikes.
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.
Dogs will chase things that run, that is instinct.
The same reason they chase cats and squirrels and mice. Dogs are predators. Predators chase things to kill and eat.
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.
Kids should not be riding bikes round a shopping centre.
Chase Utley's dog is named Jack
Any dog breed can chase cats.
they actually like to chase mice
All dogs chase cats.
Dogs like to chase things, eat, snuggle, and play with YOU.