Its because Polaris is actually three stars in a trenchcoat, two of which are older than sharks with one of them being younger. Polaris Aa, the brightest star and what we call the North Star, is probably younger than sharks, while Polaris Ab is probably older than sharks. Polaris B is almost certainly significantly older than sharks.
I always thought that this was because Polaris wasn’t aligned with the Earth’s axis until fairly recently.
Its because Polaris is actually three stars in a trenchcoat, two of which are older than sharks with one of them being younger. Polaris Aa, the brightest star and what we call the North Star, is probably younger than sharks, while Polaris Ab is probably older than sharks. Polaris B is almost certainly significantly older than sharks.