Activity of Micky

I have two male westie's (neither has been castrated), both 22 months old. I brought them home at 8 weeks and they have lived together happily until last week. Several times during they day they have growling spats at each other, it's almost like it...

If you found out after 40 years that you had half sisters and brothers that you didn't know existed would you be interested in finding out more/getting to know them or meeting them? Or would you leave well alone? Would it make the decision easier if...