At first glance, every Sri Lankan leopard can look like gold fur covered in black spots. Look longer and the coat starts behaving more like a fingerprint.
Rosettes are the clue
The shapes, sizes and arrangements of spots and rosettes differ from leopard to leopard. Researchers can compare the face, nose, whisker area, neck, forelegs and flanks to work out whether two photographs show the same animal.
One spot is not enough
A Sri Lankan study found that injuries can alter visible spot and rosette patterns over time. That is why this archive treats identification as a careful process, not a guessing game.
Try it next time
Instead of asking “does this leopard have the same face?”, look for clusters: the forehead, both sides of the muzzle, eye area, neck and flank. The more matching areas you have, the stronger the identification.
Wild bit: a good identification feels less like luck and more like detective work.