Pitbull-type dog faces being put down today unless new owner is foundAbandoned after previous owner saw him mounting another male dogBut animal experts say this is a sign of dominance not sexuality While dogs are known to occasionally display homosexual behaviour, animal experts say a male dog mounting another male dog is not a sign of sexual orientation but rather a sign of dominance.The dog's fate has sparked a frantic appeal among animal lovers to find a new owner before it's too late. AÂ Facebook page has been set up with the message: 'Don't let this gorgeous dog die bc...