Polar bears and penguins can actually both go for weeks without food. Polar bears sometimes do when their ice hunting grounds are thawed in the summer. Penguins do while taking turns caring for eggs and chics while the other parent is off to the sea feeding, also when they are moulting and cannot go in the water.
The cartoonist can also go for days without updating the comic. Heh, I got a little behind so I’m catching up by plugging in comics for the missed days to stay on schedule.