If you like cats (and I do) then you should take a look at this BBC report on Scottish Wildcats and then read the Wikipedia page on the wonderfully named Felis silvestris (i.e. the same animal). They really do look just like slightly evil domestic moggies. Or if you prefer, our domestic moggies clearly show their heritage as they stalk prey in the garden.
Actually the Latin name set me wondering if the cartoon cat Sylvester was named knowingly. Once again we turn to Wikipedia and find that yes, this is a deliberate pun, though it points out that Sylvester is a true domestic cat and hence Felis catus. Shucks. However some declare domestic cats as Felis silvestris catus (a subspecies of the wildcat) in which case all is right with the world.