Back in 1975, the American Grizzly bear was declared endangered. With only minor differences, the American Grizzly bear is the same species as the European bear, that lives from Western Spain, through Europe to the Kamchatka bear of far Eastern Russia.
In 1975 the USA lower 48 states grizzly bear population numbered somewhere between 136 animals and 312, so it was essential that it was protected. Nowerdays the same 48 states have a population of around 1500, but given that this number would have been as high as 50,000 when people started migrating to the USA in large number, this recovery is only just getting going.