New on The Scientist: The Caterpillar that Cries Wolf

North American walnut sphinx moth caterpillars look like easy meals for birds, but they have a trick up their sleeves—they produce whistles that sound like bird alarm calls, scaring potential predators away.At first, scientists suspected birds were simply startled by the loud noise. But a new study suggests a more sophisticated mechanism: the caterpillar’s whistle appears to mimic a bird alarm call, sending avian predators scrambling for cover.Read the whole story here: The Caterpillar that Cries Wolf.