From Crickets to Whales, Animal Calls Have Something in Common

ScienceDaily (2010-01-06) -- Animals produce a tremendous diversity of sounds for communication to perform life's basic functions, from courtship and parental care to defense and foraging. Explaining this diversity in sound production is important for understanding the ecology, evolution and behavior of species. Scientists have presented a theory of acoustic communication that shows that much of the diversity in animal vocal signals can be explained based on the energetic constraints of sound production. ... > read full article