americas apex-predator big-cat black-spots Camouflage carnivore carnivorous circles coat distinctive feline fur in-decline jaguar mammal near-threatened opportunistic panthera-onca pelt powerful-jaws relaxed rosettes solitary spots spotted sprawled-out stalk-and-ambush-predator stalker stalking stocky strongest-bite third-largest-feline zoo dark decline deserted empty home Lower Silesia nostalgia sad memories sentimental boat collapse island lake landscape old rust rusty water ancient architecture brick british building chimney decay desuetude door England english Eton evening Great Britain historical house tower uk wall window