What is the difference between a chihuaha and a golden retriever?
Chihuahas are a breed of dog and they are generally smaller in size. They can be long or short haired. Their temperament is that they like to bark a lot and are easily agitated. Regardless, Chihuaha dogs make great companions and lap dogs. 

Golden retrievers are a breed of dog and they are generally larger in size. They are very intelligent dogs and can be easily trained. They are used as service dogs to help people, for example they can be a guide dog for the blind. Their temperament is that they are calm and focused. Golden retrievers are also great companion dogs.