Long before winter seals the forest under ice, certain frogs begin preparing for a transformation that defies basic biology.

Q. Last year, you provided facts about salamanders. What can you tell us about frogs and toads? How are they different from other animals? What makes them special? A. Salamanders, although abundant in ...

So, why do frogs sing? One of the most important reasons is for advertising. They are looking for a mate. Their song says "I'm here, I'm handsome, beautiful and available. Come on over, the water's ...