Video script prompt

Why Is a Reindeer’s Nose Red? Science focus: Blood circulation & heat exchange In the icy air of the North, reindeer breathe clouds of frost as they move through snow and wind. At the front of every team, one nose always seems redder than the rest. A reindeer’s nose is filled with tiny blood vessels packed closely together. Cold air rushes in, and warm blood flows past it, heating each breath before it reaches the lungs. The red color is not from the cold, but from hard work. While the night grows darker and colder, the nose keeps the body ready to run, guide, and carry. What looks bright in winter is often what works the hardest. Closing line: Sometimes the warmest part is the one doing the most work.