While you may struggle to keep the extra pounds from coming on this holiday season, pigs don’t really have a choice. They apparently lack a gene called UCP1, which helps most mammals to regulate their body temperatures in cold weather. So the next best thing is typically insulation via packing the fat on, but this costs farmers a ton in feed, not to mention heating costs. Sensing an opportunity, researchers from the Chinese Academy of Sciences in Beijing used CRISPR/Cas-9 gene editing to give pigs a mouse version of the gene. The result? Healthy piglets with 24% less fat as compared to competing brands. That could mean happier pigs, that cost less, and are healthier to eat. No word yet on how CRISP-y the bacon was.