Dzina la sayansi la zamoyozi ndi 'Promachocrinus fragarius' ndipo malinga ndi kafukufukuyu, dzina lakuti Fragarius limachokera ku liwu lachilatini lakuti "fragum," lomwe limatanthauza "sitiroberi."
Mafupa a zaka 400,000 ali ndi umboni wa mitundu ndi mitundu yosadziwika, yapangitsa asayansi kukayikira chirichonse chimene akudziwa ponena za chisinthiko chaumunthu.
Ofufuza amafotokoza za ma genome kuchokera kwa anthu khumi mpaka zaka 7,500 omwe amathandizira kuwonetsa kutuluka kwa majini kuchokera kwa anthu omwe akuyenda kudera lina kuchokera ku North America kupita ku North Asia.
