I watched as this giant green caterpillar traveled across the garden in late September. While it was making its way across a dead branch lying in its path, I went inside for my camera. I found it again at the very top, with nowhere else to go and helped him get safely back on the ground to continue on his journey to become a giant Polyphemus Moth in the spring.
I found some fabulous photos of the metamorphosis of this caterpillar into a Polyphemus Moth here at whatsthatbug.com .