What’s the Difference?

Top Photo: Sawfly larva or caterpillar? I received an email, with a blurry photo attached, stating that the emailer had taken the photo in Explore the Wild. The subjects in the photo looked to be caterpillars, but may have been sawflies, I couldn’t tell. I had to go look for myself. The email said that the caterpillars, or whatever they were, were on a birch tree on the north side of the Wetlands. There are three birches on the north side ofRead more