Humans like to have pets, but in a space colony there will be limited food supply, and the importance for recycling everything. That means there will not be very much left over to have a pet of another species in a space colony. Therefore, what types of pets might you have? Having plants as pets might work, but sometimes that’s not enough for humans.
Small mammals and rodents might work, but that too could be problematic, and we don’t know how well they’ll do in space. They might do better than the humans, and they might reproduce well, but then they would eat the colonists out of house and home. Therefore taking cats and dogs to Space might not make any sense either – how about ferrets, mice, or other small creatures; hard to say.
NASA has taken spiders into space and put them in a zero gravity environment, and they did just fine, they immediately created a web, and waited for insects to fly by to catch. There were not any insects to catch, but they went ahead and built their home, and went along with their genetic plan. Spiders are fun to watch, and they are interesting, therefore they might make great pets for space colonists.
Yes, some Space colonists might be afraid of spiders, but if non-poisonous spiders were used, it wouldn’t be so bad, and maybe they might get used to it. It seems that humans need pets for some reason, something to take care of, and perhaps it is part of their genetic component and psychological dispensation of nurturing a family which causes this in the human psyche.
If we deny this, and we don’t allow pets in our space colonies, we may find that some of the humans and colonists become depressed, upset, bored, and it might affect them in a negative way. Now then, I’m not sure if spiders will make the greatest pets for Space colonists, but it is an idea to throw out there and something to think on. There will be pros and cons of taking any species into space, or to live on another planet – much like the challenges that humans will face themselves.
Perhaps we need to do some studies to figure out what type of pets make the most sense for space colonists and what fellow species on earth we can take with us, if any. Indeed I hope you appreciate this line of conversation and these forward thinking thoughts. I ask that you please consider all this and think on it.