Ngokwabacwaningi, izimfudu zasemanzini ezikhulile zixhumana zodwa nangamaphuphu azo zisebenzisa okungenani izinhlobo eziyisi-6 zemisindo.
Besebenzisa imibhobho nama-hydrophone, ososayensi bakwazi ukuqopha imisindo engaphezu kuka-250 eyenziwa izimfudu zasemfuleni. I-Podocnemis expansa. Babe sebewahlaziya aba izinhlobo eziyisithupha ezihambisana nokuziphatha kofudu oluthile.
"Incazelo eqondile yale misindo ayicacile ... Nokho, sikholelwa ukuthi izimfudu zishintshana ngolwazi," kusho uDkt. Camila Ferrara, owabamba iqhaza kulolu cwaningo. "Sikholelwa ukuthi imisindo isiza izilwane ukuthi zixhumanise izenzo zazo phakathi nenkathi yokubeka amaqanda," kwengeza uFerrara. Imisindo ekhishwa izimfudu yayishintshashintsha kancane kuye ngokuthi izilwane zenzani ngaleso sikhathi.
Ngokwesibonelo, ufudu lwalukhipha umsindo othile lapho abantu abadala bebhukuda bewela umfula. Lapho zonke ezinye izimfudu zibuthana ogwini lapho kwakwenziwe khona izikebhe, wenza umsindo ohlukile. NgokukaDkt. Ferrara, izimfudu zezinsikazi zisebenzisa imisindo ukuze ziqondise inzalo yazo esanda kuchanyuselwa emanzini futhi zibuyele ogwini. Njengoba izimfudu eziningi ziphila amashumi eminyaka, ososayensi basikisela ukuthi phakathi nokuphila kwazo, izimfudu ezincane zifunda ukuxhumana zisebenzisa imisindo evela ezihlotsheni ezinokuhlangenwe nakho okwengeziwe.
Futhi i-keel turtle yaseNingizimu Melika inezimpawu zomsindo ezingaphezu kuka-30: abantu abasha bakhala ngendlela ekhethekile, amaduna amadala, lapho eshela abesifazane, aklabalasa njengomnyango ongagcotshiwe; Kukhona imisindo ekhethekile kokubili yokucacisa ubudlelwano kanye nokubingelela kobungane.
Izinhlobo ezahlukene zixhumana ngendlela ehlukile. Ezinye izinhlobo zixhumana kaningi, ezinye azivamile, ezinye zikhulumela phezulu, kanti ezinye ngokuthula. Inqe, i-matamata, i-pig-nosed kanye nezinhlobo ezithile zomfudu wase-Australia kwavela ukuthi zazikhuluma kakhulu.
shiya impendulo