A National Geographic article I read recently, on how greater intelligence is being attributed to animals, got me thinking about how smart my pets have been.

I have had a lot of pets over the years, but there have also been times in my life, when I had none.

Anyway, the article made me go through my life and review my different pets and see how much merit this article had.

My first pet was Tippy, a collie pup my dad bought for me, pretty much, right after I was born. He got bigger faster obviously and when I could crawl/walk, this tolerant dog let me ride him. There are a fair amount of pho...