Grizzly Bear
(Ursus arctos horribilis)
Two brother grizzly bears, Boo and Thor, currently call the Detroit Zoo home.
Boo and Thor — along with their late brother, Mike (2011-2024) — were rescued in 2011 after being orphaned in the Alaskan wild. They later moved to the Detroit Zoo, where they grew and thrived. Today, Boo and Thor enjoy swimming and playing in their expansive habitat.
Quick Facts
Quick Facts
Habitat:American Grassland
Class:Mammals
Conservation Status:Least concern
Size:Up to 10 feet tall when standing upright
Weight:800 to 1100 pounds
Median life expectancy:21 years for males; 26 years for females
Diet:Roots, leaves, berries, squirrel, elk, moose and deer
