Two related frog species differ by chromosome number, which deepened one species's calls and tells the females who's who. Steve Mirsky reports The eastern grey tree frog (sound) looks exactly like the ...

We heard frogs a lot in spring. A trio began calling as soon as the ice went out. Two tiny ones - chorus frogs and spring peepers - woke from a hibernation to quickly find open water and begin their ...

When it comes to love songs, female tree frogs are pretty picky. According to a new study, certain female tree frogs may be remarkably attuned to the songs of mates who share the same number of ...