“Scientist Kenneth Barnett was the first to discover the chameleon “hoot”. One day he was handling Zappa, his pet veiled chameleon (Chamaeleo calyptratus) when he noticed that it was producing a buzzing sound from an area just in front of its front legs”…
https://digitalcommons.wku.edu/cgi/viewcontent.cgi?article=1384&context=stu_hon_theses
https://digitalcommons.wku.edu/cgi/viewcontent.cgi?article=1384&context=stu_hon_theses
