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When I first domesticated dogs, they just showed up not long after I got the tech. I've had goats and sheep for some time and even had a stables built for years and no sheep and goats show up. Is the only way to get them to buy them from a trader?
This question / problem has been solved by Blinkin89image
No it's not the only way, you can also capture some of the wild animals and tame them. When you click on them you will see an option for it.