5.875x5.75 acrylic ink original or 5.5x5.375 Giclee print. The Isabella Tiger Moth lays its eggs on various host plants. The Wolly Bear Caterpillar that emerges will over winter in the leaf litter. It produces glycerol and sorbitol that act like a natural antifreeze. In the spring, it will spin a cocoon and the life cycle starts again.