fable: a dog and a cat

From a collection dated 1738:

There was a Dog and a Cat brought up in the same House, from a Whelp and a Kitling, and never were Two Creatures better together; so Kind, so Gamesome and Diverting, that it was half the Entertainment of the Family to see the Gamboles and Love-Tricks that pas'd betwixt them. Only it was observ'd, that still at Meal-times they would be Snarling and Spitting at one another under the Table: And what was the whole Sum of the Controversy at last, but a Dog-and-Cat Wrangle about the Picking of a Bone, or the Licking of a Trencher.

The Moral.
Flesh and Blood does naturally consult its own Advantage. And when that comes to be the Question; There's the Bone that in some Degree or other sets all Mortals together by the Ears.

Fables of Aesop and Other Eminent Mythologists: With Morals and Reflections (London, 1738), p. 528.  This was in the "Other" section, so not one of Aesop's according to the editors (there were over five of them).