  Huddle & Cuddle: How Puppies Keep Warm  Time Required Long
(2-4 weeks) Prerequisites None Material Availability Readily
available Cost Low ($20 - $50) Safety Use caution when handling
glass jars or thermometers, as they can break or crack if
dropped. Adult supervision is required when using the stove.
What's the first thing you do when you wake up on a cold, frosty
morning? Snuggle down deeper under the covers? Animals, like
puppies and piglets, don't like being cold either, but they
don't have hands or blankets to wrap themselves up. So when
animals get chilled, they change their behavior and do things
like huddle—they curl up close to other animals. In this
mammalian biology science fair project, you'll see just how much
huddling can help reduce heat loss.   To determine how much
huddling reduces heat loss in warm-blooded animals.   Kristin
Strong, Science Buddies  This science fair project is based on
the following California State Science Fair (CSSF) project, also
a winner of the Science Buddies Cleve