title: Hantida qadiimiga ah ee la helay waxay muujineysaa waxa dhacay hal milyan oo sano kadib markii dinosaurku dabar go'ay
abstract: Markii ay raadinayeen lafaha ceyriinka ah ee Daanyeerada, cilmiga dhulka ee qadiimiga ahi wuxuu ogaaday in dhulka uu jiro lakab gaar ah oo lafaha ceyriinka ahi ku baaba'aan. lakabkaasi waxa uu calaamadeynayaa markii asteriyoodh uu ku dhacay dhulka 66 million oo sano kahor, taasoo keentay in diinoosaaradu ay baaba'aan ama halaagaan ama baabi'iyaan in kabadan 75% noocyada noolaha.