Badweynta Atlantic ma leedahay? Marka la eego su'aasha hore, ku qor macnaha guud ee jawaabta. Waxay noqon kartaa 1 ilaa 20 jumladood. Macnaha guud:
Inta lagu jiray bartamihii Eocene, waxaa la rumeysan yahay in saxanka dheecaanka ee Amazon uu ku kala jabay bartamaha qaaradda iyada oo loo marayo Purus Arch. Biyaha dhanka bari waxay u socdeen dhanka Atlantic, halka dhanka galbeed ay u socdeen dhanka Pacific iyagoo maraya Amazon Basin. Si kastaba ha ahaatee, markii ay buuraha Andes kor u kaceen, waxaa la sameeyay biyo-xireen ballaadhan oo ku wareegsan haro; oo hadda loo yaqaanno Biyo-xireenka Solimões. 5-10 milyan oo sano gudahood, biyahaas uruursaday waxay ka jabeen Purus Arch, iyagoo ku biiray qulqulka bari ee dhinaca Atlantic.