A recent study showed that shrews' heads could shrink up to 20 percent in the winter.
How does the National Weather Service calculate the windchill?
When winter comes, how can you tell if you're safe or on thin ice? Find out on today's A Moment of Science.
Manatees take winter refuge near power plants to stay warm; but plant closures threaten their survival.
When it gets cold, a biochemical process replaces some of the water in the mosquito's body with glycerol.
What is frostbite and why is it so dangerous to your body?
Unlike their ancestors, current birds of Britain aren't flying south for the winter. How are they surviving the colder months?
Winter transforms the way the environment sounds. The smoother and harder a surface, the better it reflects sound.
Many insects hibernate or migrate during the winter, but honeybees are more like us, they bundle up and wait for spring. How do they survive?
Research indicates that more people die of natural causes during the holiday season than any other time of the year. Learn more on this Moment of Science.