Ucwaningo olusha luveza ukuthi enye yezinsalela zezilwane zakudala kunazo zonke ezake zatholwa, izinsalela zesidalwa sasolwandle esineminyaka eyizigidi ezingu-520 ubudala, iye yatholwa ososayensi.
Isilwane esakhiwe ngamathambo, i-fuxhianhuiid arthropod, sinesibonelo sakuqala sesimiso sezinzwa esidlulela ekhanda futhi sibe nezitho zangaphambili ngaphansi kwekhanda laso.
Izinhlobo ezifana nenkawu kungenzeka ukuthi zazihambahamba phansi olwandle zisebenzisa izitho zazo ukuze ziphushe ukudla emlonyeni. Izitho zinganikeza ukuqonda ngokuvela kwama-arthropods, ahlanganisa izinambuzane nama-crustaceans.
“Njengoba izazi zesayensi yezinto eziphilayo zithembele kakhulu ekuhleleni ama-appendages ekhanda ukuze zihlukanise amaqembu e-arthropod, njengezinambuzane nezicabucabu, ucwaningo lwethu lunikeza iphuzu elibalulekile lokubhekisela ekwakheni kabusha umlando wokuziphendukela kwemvelo nobudlelwane bezilwane ezihlukahlukene neziningi kakhulu eMhlabeni,” kusho ucwaningo. umbhali uJavier Ortega-Hernández, usosayensi womhlaba eNyuvesi yaseCambridge, esitatimendeni. "Lokhu kusekuqaleni njengoba singabona okwamanje ekuthuthukisweni kwezitho ze-arthropod."
Isilwane sokuqala
I-fuxhianhuiid yayiphila ngesikhathi sokuqala kokuqhuma kweCambrian, lapho izinto eziphilayo ezilula zamangqamuzana amaningi ziguqukela ngokushesha zibe yizinto eziphilayo zasolwandle eziyinkimbinkimbi, cishe iminyaka eyizigidi ezingu-50 ngaphambi kokuba izilwane ziqale ukuvela olwandle zifike emhlabeni.
Nakuba i-fuxhianhuiid ike yatholakala ngaphambili, izinsalela zazihlala zitholakala zibheke phansi, nezitho zazo zangaphakathi ezithambile zifihlwe ngaphansi kwe-carapace enkulu noma igobolondo.
Noma kunjalo, lapho u-Ortega-Hernández nozakwabo beqala ukumba endaweni eseningizimu-ntshonalanga yeShayina eyaziwa ngokuthi i-Xiaoshiba, ecebile ngezinsalela, bathola izibonelo eziningi zama-fuxhianhuiid imizimba yawo eyayiguquliwe ngaphambi kokuba ivulwe. Sekukonke, abacwaningi bathola ezinye izibonelo eziyisishiyagalombili ngaphezu kwe-arthropod egcinwe ngendlela emangalisayo.
Lezi zilwane zasendulo kungenzeka zazikwazi ukubhukuda amabanga amafushane, kodwa cishe zazichitha izinsuku zazo zikhasa phansi olwandle zifuna ukudla. Izilwane zokuqala ezihlangene noma ama-arthropods, kuhlanganise nezilwane zasemanzini, cishe zavela ezibungwini ezinemilenze. Okutholakele kukhanyisa umlando wokuziphendukela kwemvelo okungenzeka wezinye zezinhlobo zezilwane zakudala ezaziwayo.
"Lezi zinsalela ziyiwindi lethu elingcono kakhulu lokubona isimo sezilwane zakudala njengoba sizazi - kuhlanganisa nathi," kusho u-Ortega-Hernández esitatimendeni. "Ngaphambi kwalokho, akukho okukhombisa ngokucacile emlandweni wezinsalela zokuthi okuthile kwakuyisilwane noma isitshalo - kodwa sisagcwalisa imininingwane, okuyinto ebalulekile."
