Polar Bears are amazing animals, with good sense of smell and great at swimming. They hibernate between 5 and 8 months. Try the new Alabaster stone carving kits. Alabaster is a semi-translucent stone from Spain and finishes a beautiful white. Use water to shape the stone with all supplies included in this kit. Comes with a fold up diorama and cool fun facts about the animals. Great for ages 8+... It would take about 2 hours to complete.