Author Correction: What models eat.

In the version of this article originally published, there was an error in the sentence "That quest, which started in the 1980s, continues through until today: For a paper published online in 2017, a group of researchers based at Brazil's Federal University of Rio Grande do Sul tested Sprague Dawley rats on either a high-fat diet, a cafeteria diet or what they called a 'Western diet', formulated to match up more closely with eating patterns in developed nations (it had 42.5% of its calories from fat and added salt and carbohydrates)." Wistar rats were used in the experiment, not Sprague Dawley rats. Also, in ref. 7, the first author's last name was listed as Bortoloin. The correct spelling is Bortolin. The errors have been corrected in the HTML and PDF versions of this article.