Two creatures sing sweetly to each other, exchanging a series of trills, cheeps and chirps. If you close your eyes and listen, you might believe you are hearing two birds. But you'd be mistaken. In ...
Source: Christopher Michel, via Wikimedia Commons. Distributed under a CC BY 2.0 license. Whale song is largely considered to be a display of reproductive fitness, akin to the melodies produced by ...
Source: Kentish Plumber, via Flickr. Distributed under a CC BY-NC-ND 2.0 license. Songbirds seem to enjoy singing. And while a great deal of research has investigated the development and production of ...
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