[jessriedel]

> Their jaws had become thinner, their chins less pronouned, and their eyes larger. The article noted that it was possible that these facial features were correlated with hormonal levels that made the foxes less aggressive and more tame,

This is probably neoteny, which is considered a key part of the domestication of dogs.

https://en.wikipedia.org/wiki/Neoteny#In_domestic_animals

> Some common neotenous physical traits in domesticated animals (mainly dogs, pigs, ferrets, cats, and even foxes) include: floppy ears, changes in reproductive cycle, curly tails, piebald coloration, fewer or shortened vertebra, large eyes, rounded forehead, large ears, and shortened muzzle.

For humans, neoteny is generally considered attractive in women.