people aggression

My 9.5 month old black lab/GSD/border collie (that's what they told me and I can see them all) is starting to get very aggressive towards people, especially men. I got her when she was 5 months, and I know she was rescued at around 3 months, so I am not so sure on how she was treated for the...

A year ago I brought home a black lab mix, named Coal. I found him online, from a family, with children as well as other dogs. The first few days Coal minded his own business, never paid much care to Rally, who was also outside in the kennel with him during the day for a few hours. 8 Months...