Here’s a large, bizarre giant swallowtail caterpillar (Papilio cresphontes). This species was once highly rare in the northeast, but is now a regular fixture due to climate change. I found my first one yesterday! I’d heard that these caterpillars mimic bird poop to avoid being eaten, but their true pattern is complex and gorgeous. Plus, if startled, they splorp out a pair of red “horns” called osmeteria. The last picture shows the mature butterfly in all its glory.