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 ...
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 ...
The eastern grey tree frog (sound) looks exactly like the closely related Cope’s grey tree frog (sound). The big difference between the two species is beneath the surface—the eastern has twice the ...
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