Different breeds of dogs can be found in different biomes. They can be tamed with bones and can be bred with any raw meat. Raw meat also heals dogs health. Their health can be monitored by looking at their tail, if their tail is lower than usual it means they are low on health.
Chihuahuas are a small breed that like warm climates. They can be found in Desert biomes.
German Shepherds can be found in Forest biomes.
Golden Retrievers can be found in Birch Forest biomes.
Huskies like colder weather and can be found in Taiga biomes.
Pugs can be found in Mushroom field biomes making them a bit of a challenge to find.