they had Dogs as pets just as we do now. they even got a real grave sometimes. there's an inscription they found on a dog's grave, it went something like this:
Tu, dulcis Patrice,
Nostras attingere mensas consueras,
gremio poscere blanda cibos
Lambere tu calicem lingua rapiente solebas,
quem tibi saepe meae sustinuere manus,
accipere et lassum cauda gaudente frequenter
It means sth like:
You, sweet Patrice, had been accustomed to lie near our table, coaxingly to beg for food at our lap,
with greedy tongue you were used to licking the cup
that my hands often held up for you,
and frequently to greet (your) tired (master) with a glad tail