From Crickets To Whales, Animal Calls Controlled By Metabolic Rates

Researchers from the University of Florida and Oklahoma State University have found common denominators in the calls of hundreds of species of insects, birds, fish, frogs, lizards and mammals that can be predicted with simple mathematical models. Compiling data from nearly 500 species, scientists say the calls of a whole host of creatures are ultimately controlled by their uptake and use of energy,  or their metabolic rates. The finding, reported in today's Proceedings of the Royal Society B, will help scientists understand how acoustic communication evolved across species, uniting a field of study that has long focused on the calls of particular groups of animals, such as birds. read more

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