Animals enjoyed a snow day at the Oregon Zoo on Thursday.
Polar bear half-sisters Nora and Amelia Gray played in the snow, while river otter Tilly and her adopted pups Flora and Hobson also had some fun.
RELATED: WATCH: Bald eagle wakes up under blanket of snow
RELATED: WATCH: Wyoming trooper barely dodges out-of-control semi on snowy highway
RELATED: ODOT warns: Stay off the roads, especially back roads, this weekend
RELATED: SUV rolls onto side on icy, snowy Highway 26