When collecting wild raspberry seeds in Australia, University of Georgia scientist Rachel Itle first had to &#8220;calibrate&#8221; her eyes to search for the tiny, red berries. This, made finding them easier, but the wild berries were not plentiful. Some were bright red, some dull red and some golden, and the fruit is about a half or a fourth the size of commercial berries sold in the U.S., she said.