From dogs and cats to more exotic animals like snakes and tarantulas, pets play an important role in people's lives. Some people keep pets for companionship and consider them part of their family, while others have them in their lives as a form of protection, novelty or status symbol. Whatever the reason, keeping and caring for animals is a very human behavior that has existed since prehistoric times, when people first domesticated wolves as hunting companions. In the far-flung future of Star Trek, pets are still a part of people's lives, with some fantastic variations.
Source：https://www.cbr.com/star-trek-famous-pets-ranked/
