The musty jaguar pelts on display at a government office in Buenos Aires are a grim reminder of the big cat's precarious existence in Argentina's northern forests.
The Iguazu waterfalls that border Paraguay and Brazil mark what is now the outer limit of the jaguar's range. Just 50 of the big cats are estimated to live in the sub-tropical jungle around the famous falls.
Out of sight of the tourist hordes, Argentine scientists have been monitoring one of the nation's last remaining jaguar populations since 2003.