Hello to one and all, welcome back to the best nature program of all! Zip, buckle and velcro your many layers, put on your warmest hat and hunker down to learn about a frigid day in the lives of your Arctic Explorers Knee High Naturalists.

Trees have the most growth in spring and early summer, which forms a light-colored ring. As growth slows in late summer and fall, a thinner, dark ring is produced. We can identify these varying years of growth by looking at cross sections of trees. Starting from either the center circle to the bark, or vice versa, we count either the light or dark rings.