I live in Alaska and I've seen mama moose bring their calves into a yard to play in these pools because they know they will be safe there. It's the neatest thing to see a brand new moose calf frolic in your yard. Pure happiness on gangly legs.
Fun Fact: Polar Bears yell when they poop.) I cannot stop laughing at this fun fact. Wouldn't you love to meet the person who figured this out? Does a bear poop in the woods? Oh does he ever, I hear it all the time!