Want to attract more monarch butterflies to your garden? Boost their numbers with these milkweed types and tips.
Nearly all caterpillars are herbivores, but not this one. Caterpillars on the islands of Hawaii have evolved with claws that are more suited to catching live prey. Watch the clever way they attack their meals.
To protect against herbivores the wild tobacco plant deposits trichomes, sweet treats irresistible to but also potentially fatal for leaf-eating caterpillars. Shortly after ingesting the trichomes, the insect releases a particular odor that attracts ground-foraging predators. "What Plants Talk About" premieres Wednesday, April 3 at 8/7c on PBS (check local listings).