An gano wani baƙon tsutsa a cikin Tekun Pacific. Bambancin wannan kwayar halitta ya ta'allaka ne da cewa a gaban kai, ba shi da jiki kwata-kwata.
Abun da aka gano ya zama sananne ne daga irin wannan littafin mai iko kamar Biology na yanzu. A cewar masanan ruwa da ke wakiltar Jami'ar Stanford, a bayyane, wannan tsutsa tana kama da babban tsutsa, wanda ya yanke shawarar fara kumbura kansa ya fara girma daga baya. Godiya ga wannan, tsutsa ta riga ta iya yin iyo yanzu kamar ƙwallo a cikin teku, suna tattara katako. Wataƙila, irin wannan jinkiri na ci gaba yana da mahimmin mahimmanci ga tsutsa, tunda tana iya yin iyo sosai.
An gano hakan ne kwatsam - yayin ci gaba da tsutsa daga cikin dabbobin ruwa daban-daban domin yin nazarin metamorphoses nasu, farawa daga matakin tsutsa har zuwa wani baligi daban daban.
A cewar Paul Gonzalez (Jami'ar Stanford, Amurka), masana kimiyya sun daɗe da sanin cewa dabbobin ruwa a mafi yawan lokuta suna bunkasa ta wannan hanyar. Dangane da haka, masana ilimin halitta sun daɗe suna damuwa game da dalilin da kuma yadda suka sami wannan damar. Kuma babban abin da ya hana mu samun amsoshi shi ne, yana da matukar wahala da bata lokaci don bunkasa tsutsar irin wadannan dabbobi da neman “danginsu”, wanda zai yi daidai a rayuwar baligi.
Kuma don neman irin wannan kwayar ne masu binciken kimiyyar teku suka gamu da wata tsutsa mai ban mamaki. Schizocardium californicum ne wanda ke zaune a cikin Tekun Pacific kusa da Kalifoniya. Kamar su manya, suna rayuwa a ƙasan rairayi, suna cin ragowar dabbobi da ke faɗuwa zuwa ƙasan teku. Su larva, wanda masana kimiyya suka gano, suna da kamanceceniya da kan babban mutum ba tare da jiki ba. Godiya ga irin wannan jikin, suna iya "iyo" a cikin ruwa, suna ciyarwa akan plankton.
Dalilin haka shine kawai kwayoyin halittar da ke haifar da ci gaban jiki a matakin larva kawai ana kashe su. Kuma lokacin da tsutsa ta ci har zuwa wani matakin kuma ta girma zuwa wani girman, wannan kwayar halittar tana kunna kuma sauran jikin yana girma a ciki. Yadda ainihin wannan haɗarin ya faru har yanzu masana kimiyya ba su sani ba, amma suna fatan samun amsa ta hanyar lura da ci gaban wannan dabba da ci gaban ƙwayoyin cuta na jini, waɗanda suke kusa da Schizocardium californicum, amma suna girma kamar yadda aka saba.
