Monarch butterfly (Danaus plexippus) caterpillar on common milkweed (Asclepias syriaca), Green Farm Park, Maryland. The two species have a close associaition.
Photo ID: Brett-Cole-Maryland-00657
Photo size: 18.6 Mpixels (53.2 MB uncompressed) - 5281x3521 pixels (17.6x11.7 in / 44.7x29.8 cm at 300 ppi)