31K views · 809 reactions | Woolly bear caterpillars are on the move! These fuzzy wanderers are most often seen in the fall, as they search for spots under leaves, logs or rocks to spend the winter. They can survive freezing in the winter, reawakening in spring to continue their transformation into moths. Watch for them while you're out exploring this fall!  Courtney Celley/USFWS | U.S. Fish and Wildlife Service | Facebook

8.4K views · 197 reactions | Winter is Coming: The Woolly Bear...

The Isabella tiger moth (Pyrrharctia Isabella) aka “woollybear” is native to North America and can be found throughout the US into Southern Canada. They have two generations per year and spend the winter frozen solid as caterpillars. They produce a substance called cryoprotectant that prevents the inside of their cells from freezing, allowing them to survive the winter and thaw out in the spring. They have a very generalist diet and feed on a wide variety of herbaceous plants and tree foliage bu