Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Kupfuura: Zvicherwa zvekare-kare zvinozivikanwa zvemhando dzakawanda dzemazuva ano dzemhuka dzinoyamwisa zvinooneka munguva pfupi munguva yeEocene yokutanga. Pakuvamba kweEocene, mapoka matsva anoverengeka ezvipembenene akasvika muNorth America. Idzi mhuka dzinoyamwisa dzemazuva ano, dzakadai sedzinonzi artiodactyls, perissodactyls uye primates, dzaiva nezvinhu zvakaita semakumbo marefu, matete, tsoka nemaoko zvaikwanisa kubata, uyewo mazino akasiyana-siyana aikwanisa kutsenga. Zvimiro zvedzinza zvakatonga. Nhengo dzose dzezvikwata zvitsva zvemhuka dzaiva duku, pasi pe10 kg; zvichibva pakuenzanisa ukuru hwemazino, mhuka dzaiva mumwaka weEocene dzaingova ne60% chete yehukuru hwemhuka dzaiva mumwaka wePaleocene dzakanga dzisati dzavapo. Vaivawo vaduku pane mhuka dzaivatevera. Kunofungidzirwa kuti tembiricha inopisa yeEocene yaifarira mhuka duku idzo dzaigona kubata zviri nani nokupisa.  Mubvunzo: Zvinoita sokuti mhuka dzemazuva ano dzaiva nemakumbo akaita sei?
makumbo marefu, matete