Black long-haired cat with gold eyes, looking into the distance
Mid-thought, in the catio.
Black long-haired cat with gold eyes lying directly behind a computer keyboard, staring at the camera
Editorial oversight. Nothing gets typed without approval.
Black cat perched on the open dishwasher door while a gray cat inspects from the counter
Dishwasher inspection, with backup.
Two long-haired cats in matching red recovery suits watching the yard through a door
Right, in the red suit, registering a complaint.
Black kitten with gold eyes sitting alert on a cat tree platform beside a length of red ribbon
The stare was already fully developed.

Zeta watches everything and says almost nothing, which is how she gets away with so much.

She is deep in thought roughly all of the time, and the thought is usually about how to get you to do what she wants. She has never once had to ask twice. Doors, laps, and the exact timing of dinner are all, in her view, negotiable — and she is the one negotiating.

Long black fur, gold eyes, and an unnervingly steady stare. She takes the catio seriously, treats the fence line as scheduled programming, and has strong opinions about being picked up that she will share with you once.

The Name

Zeta bears the name of the Riemann Zeta function, one of the most important unsolved problems in mathematics. The function searches for zeros—the values where it equals zero—a question with profound implications for number theory and the distribution of prime numbers. In a household filled with minds that think in patterns and probabilities, that search for hidden structures and meaningful connections, Zeta was always the obvious name. She is the searcher, the one who watches and thinks and finds what others miss. Half the household's namesake, and the mathematical heart of Zetaropy.

YEARS
2025–
COAT
Long, black, quietly dramatic
EYES
Gold, unblinking
FULL NAME
Zeta (of the Riemann Zeta function)
KNOWN FOR
Getting her way without raising her voice
SIGNATURE MOVE
The long stare, held until you give in
GALLERY
Wing 01 of the collection