The Science Machine is a Trader found in a Trader Camp. The person manning the machine seems to be a reptilian alien. The text says: "It's some sorta lizard alien. No one seems to mind. For a small fee I can permanently mess up your genetic code! 75% discount for the first zap! That's a deal!"
The first deal, costing 5 food, will increase the strength and the fitness of one of you (you get to pick after paying the price) characters by 1.