These plant, fish and bird species all have something in common 
By Liny Lamberink CA Source: cbc 12/23/2022
Liny Lamberink
Credit: Colin Gallagher/Fisheries and Oceans Canada
"How did that happen? You know, you can just dream up different scenarios," she said. 

Canada lists the hairy braya as an endangered species. Its species at risk page says the plant is restricted to an area that remained ice-free during the Ice Age and it's been unable to move into surrounding areas as the ice receded. 
 

Big Fish River and Little Fish Creek

Near the N.W.T.-Yukon border and northwest of Aklavik is Big Fish River and Little Fish Creek — an area of critical importance to a migrating population of Dolly Varden. The species is of special concern.

 
Big Fish River Trout, Dolly Varden Continue...