The evolution of elaborate signals can emerge from changes in anatomical signaling structures. In the male túngara frog, a simple advertisement call (‘whine’) can be ornamented facultatively with a su
The 1-min background noise recordings were collected at three sites in China. The noise1, noise2, and noise3 were collected at Zijin Mountain (Nanjing), Poyang Lake (Nanchang), and Jiuli Lake National
