Killer Montana Mama Grizzly Euthanized, Three Cubs are Zoo Bound 5.55K Jeff Neumann 07/31/10 01:02PM Filed to: Animals Animals Bears Zoos montana Zoomontana Earlier in the week, a mama grizzly bear and three cubs attacked hikers in Montana, killing one of them. Yesterday the mother was euthanized, and the cubs are being shipped off to ZooMontana to join its grizzly exhibit. [Billings Gazette]