A team of scientists at Duke University made a mouse just a bit more human. They didn’t give it speech or opposable thumbs.

When combined with specific Bacteroides bacteria, acetate rewires metabolism, boosting fat burning and reducing sugar ...

Mice genetically engineered to lack the ability to make the amino acid cysteine, and fed a cysteine-free diet, lost 30 percent of their body weight in just one week, a new study shows.