A dog will recognize its owner if given away. Dogs are very loyal to their owners and will not completely forget their original owners after giving them away. Dogs are olfactory animals. With their excellent sense of smell, they can firmly remember their owners' taste. Therefore, even if you have been away from the original owner for several years, you will quickly recognize the original owner when you see him again. But as long as the new owner is friendly and patient to it, it will recognize its owner again. It's just that the emotion towards the second master will change, losing absolute trust and becoming independent and obedient.

Signs of a dog recognizing its owner:

1. The dog will often stick to its owner, and the dog will surround him wherever the owner goes.

2. The dog will respond to the instructions given by the owner to a certain extent. For example, if the owner calls it, the dog will naturally run to the owner.

3. Dogs will protect their owners. If a dog sees other dogs approaching its owner, or other people bullying its owner, it will be aggressive to other dogs or people.