Photographer unknown, but much appreciated.

Macavity’s a ginger cat, he’s very tall and thin;
You would know him if you saw him, for his eyes are sunken in.
His brow is deeply lined with thought, his head is highly doomed;
His coat is dusty from neglect, his whiskers are uncombed.
He sways his head from side to side, with movements like a snake;
And when you think he’s half asleep, he’s always wide awake.”

Macavity – The Mystery Cat by T.S. Elliot in Old Possum’s Book of Practical Cats

Well, we always did know the fur balls served some greater purpose.