JonasCliverMightyenas lol 1 point on 2016-07-01 16:45:45
There is a nice study on dog jealousy. The authors found that 'dogs exhibited significantly more jealous behaviors (e.g., snapping, getting between the owner and object, pushing/touching the object/owner) when their owners displayed affectionate behaviors towards what appeared to be another dog' - this other dog was a stuffed dog by the way :)
I'd like to combine this with Zimen's findings on comparative same-sex aggression in captive wolves.