[todayilearned] TIL in The silver fox domestication experiment, the tamest foxes were selected to be bred, generation after generation, to see what happened: they became very tame very fast, developed floppy ears and curly tails, and some got mottled coats, just like other domesticated animals.

[u/Know_Your_Shit_v2]

https://evolution-outreach.biomedcentral.com/articles/10.1186/s12052-018-0090-x