Glass Frogs: Centrolenidae

People rarely see glass frogs in the wild or in the pet trade. Conservationists are especially interested in these little frogs because they may be good bioindicators (bie-oh-IN-dih-KAY-torz). A bioindicator is a living thing that provides clues about the health of the place where it lives. Glass frogs live in rainforests and cloud forests that are affected by global warming. As the Earth's weather changes, some of these forests are becoming too dry and making life difficult for the frogs, as well as other plants and animals. By watching the frogs, scientists can learn how much of a problem global warming might cause.