how are dogs different from cats?

very interesing question this, i've always felt that dogs are not as mean as cats, cats are more selfish and once its purpose is met they wont look back, but dogs are always thankful to those who help them or feed them. I think you should invest in people who always remembers ur help and ready to give its due back to you.

i have one dog and two cats..but before i had one more cat! i enjoyed with them all for 5 years! they like same for me! i cared them alot! when i got upset/bor i got their company! :) they are sweet! but one day i realise that cats are different from dogs when! a street! dog! eated! my one sweet cat! :( outside our house! i can't forgive myself for that! i loved her so much! hmmmmmmmmm cant say much! but my dog never acted! aginst any cat! they all living happily! with each other! people who having both kinda pets be carefull! to care them! :)