As attention-seeking as the boxer's behavior in the latest viral video may have seemed, do dogs really get jealous? Apparently so, according to a September 2012 study.

An adorable video of a boxer dog called Steve and his new puppy MJ has gone viral on TikTok with 120,000 views. Posted to TikTok account @It's_Stevey_Boy, the owner of the animals wrote: "This was ...