https://www.physicsclassroom.com/class/waves(lesson 1 and lesson 2)
Essay 1: Frogs and Birds
Compare and contrast the mating signals of two very different vertebrate orders: anurans (frogs
and toads) and passerines (songbirds). What features do the anuran and passerine mating
vocalizations share in common? What features are different? Discuss the mating signals
themselves (acoustic structure, including elements and complexity), as well as how (anatomy and
physiology) and why (sociology) those particular vocalizations are produced (by speaker) and
preferred (by listener). This discussion should include comparison of the physical and social
environments in which frogs and songbirds live and what kinds of socio-ecological problems
each is required to solve. Your analysis should address each of Tinbergen's four perspectives
on animal behavior: adaptation, mechanism, ontogeny, and phylogeny