MNN Galleries

8 unexpected animals that sing

By: Katherine Butler on May 13, 2011, 10:30 a.m.

Photo: prilfish/Flickr

2 of 10

Toadfish can be tenors

The male toadfish’s song, which is described as a hum, is employed to lure females to his nest. Andrew Bass, an animal researcher at Cornell University, told, "It's not as complex as what you hear mammals and birds doing; it's the simplest type of communication ... but the parts of the nervous system that generate sounds are easiest to study in these fish.”