Monarch Caterpillar on Milkweed - Squirming Thrashing Defence Mechanism

monarch caterpillar pupation milkweed larvae striped bug pupa larva caterpillar instar insecta entomology insect monarch arthropoda common tiger bugs plant wildlife defence mechanism habitat growth butterfly leaf plants creepy crawler defense green black veined brown eating bug prey antennae leafy moth black white yellow animal endangered greenery bush pattern squirming change at risk stripes close up crochets wanderer marsh life