The maximum length of the frog, named Microhyla nepenthicola, is just half an inch, making it one of the tiniest in the world. The species may have evolved to be so small in order to lay eggs in a carnivorous pitcher plant (Nepenthes ampullaria) that traps and eats insects and other invertebrates. The plant dissolves its prey at the bottom of its liquid-filled pitcher, but tadpoles of the new frog species have adapted to grow up safely in the same liquid. The frogs’ small feet, which have less webbing thanthose of most frogs, may help them climb the pitcher’s slippery interior.