This is legit. In fact, some interesting studies have pointed to oxytocin levels, which are a kind of bonding hormone that we release when we're having sex or nursing or around someone that we care for extremely, oxytocin levels raising in both humans and dogs who care about each other or who enjoy each other's company, and beyond that, other studies show that oxytocin raised even in other pairs of animals, so, say, in goats and dogs who were friends and played with each other, their levels spiked afterwards.
Ovo je stvarno. Štoviše, neke zanimljive studije ističu razine oksitocina. To je vrsta "vezivnog hormona" koji otpuštamo za vrijeme spolne aktivnosti ili dojenja ili u blizini nekoga do koga nam je  iznimno stalo. Razine oksitocina povećavaju se i kod ljudi i kod pasa koji brinu jedno o drugom ili uživaju u njihovu društvu. Druge studije pokazuju da se razine oksitocina povećavaju i u drugih životinjskih parova. Primjerice, kod koza i pasa koji su bili  prijatelji i koji su se zajedno igrali, nakon toga razine su im naglo porasle.