(Current Biology 28, 2544–2556.e1–e5; August 20, 2018)In the original version of this article, the y axis in Figure 3A was mistakenly labeled as “mg/worm,” but it should have been “μg/worm.” This has now been corrected in the article online, and the corrected Figure 3A is also shown below. The authors apologize for this error and any confusion that may have resulted.Evidence of Conversion of Intestinal Biomass into Yolk (corrected)Evidence of Conversion of Intestinal Biomass into Yolk (original)