Where do Yoshis come from?  Well, they come from eggs of course.  But on a less basic note, where does one get a herd of Yoshis at a fair price?  As Brawl in the Family explores, it's possible to buy Yoshis in bulk from Yoshi ranches, but be sure not to buy any that have been imported from Super Mario Sunshine's Isle Delfino.  The species of Yoshi native to Delfino has a terrible aversion to water and a chronically upset stomach.  Always demand quality Mushroom Kingdom and Dinosaur Land Yoshis when investing in livestock.  There's more to this comic than just these two panels.  Be sure to hit BitF to read the inevitable conclusion.