Yeah, but you keep saying there are no big cats in britain, but people DID buy big cats in britain, people have seen them in the wild in britain, and hybrids, of any animal, including big cats, are NOT unusual, even melanistic ones.
By the way, as I said on here a couple of years ago, do I think there's a thriving, regularly breeding population of ANY sort of big cat in the uk, NO, I don't.
Do I think it's possible that there are enough non native big cats, pairing up every couple of years, and that some of these sitings get reported, YES.