Ka taƙaita labarin:  Wani dabba mai farauta da ke dauke da dogon kusoshi shida ya yi yawo a cikin tekuna fiye da shekaru miliyan 500 da suka gabata kuma yana cikin magabata na kwari na zamani, gizo-gizo da lobsters, masana kimiyya sun gano. Yawunik kootenayi mai kama da lobster yana da idanu huɗu da kuma dogon ƙwanƙwasa mai kama da bulala da ke fitowa daga saman yatsunsu. Hudu daga cikin ƙwanƙolin kuma suna da jeri-jeri na hakora da suka taimaka wa halittar ta kama ganima a cikin tekuna na zamanin Cambrian. Gungura ƙasa don bidiyo. Yawunik kootenayi, wanda aka nuna a sake gina shi a sama, ya rayu a cikin teku shekaru miliyan 508 da suka gabata. Wannan halittar mai kama da lobster tana da idanu huɗu da dogayen eriyoyi masu kama da bulala waɗanda suka miƙa daga ƙarshen yatsunsu. An gano burbushin wannan halittar mai ban mamaki a Marble Canyon a arewacin Kootenay National Park a Dutsen Rocky na Kanada. Masana ilmin halittu sun ce wannan nau'in wataƙila yana ɗaya daga cikin dabbobi masu rarrafe na farko da suka fara yawo a duniya - rukuni wanda daga baya ya zama gizo-gizo, lobsters da kwari. Wani dabba mai kama da dan damisa wanda girmansa ya yi daidai da karamar mota ya mamaye tafkunan zamanin da fiye da shekaru miliyan 200 da suka wuce, in ji wani sabon bincike. Masana kimiyyar halittu sun gano burbushin'super salamander' sa'ad da suke haƙa a wani tafki a kudancin ƙasar Portugal. Dabbar da ta yi girma ta kai tsawon mita biyu (6.5 ft) kuma ta zauna a cikin tafkuna da koguna a lokacin Late Triassic Period, an sa masa suna Metoposaurus algarvensis. Tare da baki cike da kaifi needle-kamar hakora an yi tunanin cewa ya farauta a kan kifi amma kuma zai iya snapped up wani kananan farkon dinosaur cewa samu kusa da ruwa. Halittar mai farauta, wacce kamar dukkan arthropods tana da kwarangwal na waje ko exoskeleton, ana tunanin ya rayu shekaru miliyan 508 da suka gabata. Cedric Aria, masanin kimiyyar juyin halitta a Jami'ar Toronto wanda yake cikin rukunin da suka gano wannan dabba, ya ce: 'Wannan dabba ta ƙara fahimtarmu game da tsarin jikin dabbobi da kuma halayensu na farautar dabbobi, wato, rukunin da gizo-gizo da kuma lobster suke ciki. Yana da...
An gano Yawunik kootenayi a cikin Marble Canyon a cikin Canadian Rockies. Halittar wata dabba ce mai farautar dabbobi wacce ta yi iyo a tekun Cambrian. Fossil na cikin rukunin da ya haifar da gizo-gizo, kwari da lobsters. Masana kimiyya sun ce yana da guda biyu na gaba tare da uku dogon claw a kan kowane.