Like a puzzle with a missing piece, it's hard to imagine Canada without many of its most iconic species, including the woodland caribou (Rangifer tarandus caribou); sadly, this majestic mammal joins other Canadian creatures that are classified as at risk, threatened or even endangered. With its uniquely shaped cutout, this pure silver coin shines the spotlight on the plight of the caribou—a national symbol whose numbers are in decline in Canada's wilderness.