How do you name your animals?

So at the start I just named them what ever name I would come up with. Later on I named my chickens after candies, cows after sodas, goats after snacks etc. But now I've taken another path and I want to see if some of you can decipher where they come from, but don't tell what the theme is. Answer with a name that fits the theme. The names are: Ivy (cat), Emma, Cornelia, Lucy, Stephen (4x chicken), Sam, Chloe, Marcus, Sophia (4x cow) Clara, Stevie (2x goat)