<prompt> Fingqa isihloko: Ososayensi bakholelwa ukuthi sebefinyelele emnyombweni wokuziphendukela kwemvelo kwe-anal. Iqembu labacwaningi baseNorway likhombe amasethi amabili ezakhi zofuzo abangela ukuba ezinye izidalwa zibe nesitho sangasese esisebenzayo ngokugcwele, kuyilapho ezinye zinezakhi zesikhashana kuphela. Lolu cwaningo luveza nokuthi ezinye izidalwa, njenge - Penis worm, zinesimiso sokugaya ukudla esifana kakhulu nesabantu, nakuba ziyizinhlobo ezihluke kakhulu. Skrolela phansi ukuze ubone ividiyo. Lolu cwaningo lwakamuva lusekelwe ocwaningweni lwangaphambilini olwalubheka izakhi zofuzo ezivezwa ngesikhathi sokukhula kwamathumbu, isisu kanye ne-anus ku-Penis worm, efanekisiwe. Isazi sezinto eziphilayo uDkt. Andreas Hejnol noDkt. Chema Martín-Durán, baseNyuvesi yaseBergen, bachitha iminyaka eminingana befunda indlela izakhi zofuzo ezishintsha ngayo ukukhula kwezidalwa. Nakuba kuye kwacwaningwa ngezitho eziningana, njengohlelo lwezinzwa, ukuvuleka kwesitho sangasese kuye kwanakwa kakhulu, kusho uDkt. Hejnol etshela i-BBC Earth. Lolu cwaningo, olwanyatheliswa ephephabhukwini i - Zoologischer Anzeiger, lwathola izakhi zofuzo ezaziwa ngokuthi i - brachyury ne - ParaHox, ezibalulekile ekwakhekeni kwe - anus. Ngokombiko kaMatt Walker we - BBC, ukuhlola kwabo kwembula indlela i - anus okungenzeka ukuthi ingenye yezitho ezibaluleke kakhulu emzimbeni wethu, esiza isimiso sethu sokugaya ukudla ukuba sisebenze. Ngokuthakazelisayo, uphawula ukuthi akuzona zonke izilwane ezinalo. Ezinye izilwane zinezinhlobo ezilula, kwezinye izitho zibonakala zingezesikhashana, kuyilapho ezinye zinezibilini ezisebenza ngezindlela ezihlukahlukene. Nokho, izilwane ezinomphimbo ngokuvamile zikhula zibe izidalwa ezinkulu, eziyinkimbinkimbi ngokwengeziwe. Ithimba labacwaningi baseNorway likhombe amasethi amabili ezakhi zofuzo abangela ukuba ezinye izidalwa zibe nesitho sangasese esisebenzayo ngokugcwele, kuyilapho ezinye zinezakhi zesikhashana kuphela. Ngo-2013, abacwaningi bathola ukuthi omunye wokhokho bethu bokuqala kwakuyisibungu esingenayo indle. Lesi sibungu, esibizwa ngokuthi iXenoturbella bocki, asinayo ingqondo, asinayo imizimba yobulili futhi asinayo imizimba ebalulekile. Ososayensi abathile babheka isibungu esiyi-1m njengesixhumanisi esiyinhloko sezinto eziphilayo phakathi kwezinhlobo eziningi. Abacwaningi bakholelwa ukuthi lesi sibungu singukhokho wasendulo wabantu nezinye izilwane eziningi eziphilayo namuhla. IsiSwidi...  <response>: Izakhi zofuzo zeBrachyury neParaHox zingase zikhanyise ekuziphendukeleni kwemithambo yegazi. Zingase zibonise ukuthi kungani ezinye izidalwa zine-anusyesikhashanakuphela. Ucwaningo luphinde luveze ukuthi ezinye izidalwa zinesimiso sokugaya ukudla esifana kakhulu nesabantu, nakuba ziyizinhlobo ezihluke kakhulu. 