Fossil cov ntaub ntawv thiab cov ntaub ntawv keeb kwm qhia tau hais tias ib zaug yuav muaj ntau pua hom dais thoob ntiaj teb, ntawm txhua lub tebchaws tshwj tsis yog Antarctica thiab Australia. Niaj hnub no, yim hom dais tseem nyob hauv North thiab South America, Europe, thiab Asia.
Vim li cas thiaj tsis muaj dais hauv Africa?
Cov hom, Agrotherium africanum, muaj cov hniav qub thiab tej zaum feem ntau yog herbivorous thiab scavenger; xav tias genus tau los ua extinct vim kev sib tw. Qhov no kuv xav tias, tuav tus yuam sij rau vim li cas tsis muaj dais hauv Africa piv txwv li kev sib tw thiab Sahara.
Lub teb chaws twg muaj dais nyob?
Bears yog cov tsiaj uas nyob hauv tsev neeg Ursidae. Lawv tuaj yeem ua me me li plaub taw ntev thiab txog 60 phaus (lub hnub dais) kom loj li yim taw ntev thiab ntau tshaj ib txhiab phaus (polar dais). Lawv pom thoob plaws North America, South America, Europe, thiab Asia.
Yuav nyob txhua qhov chaw?
Thaum lawv feem ntau ntawm lawv qhov chaw nyob yog Alaska thiab Northwestern Canada, lawv kuj pom muaj nyob hauv thaj chaw me me ntawm 48 lub xeev, suav nrog: Northwestern Montana, Yellowstone National Park, Northern Utah thiab ib feem me me ntawm Northwestern Washington.
Puas muaj tsiaj qus hauv Australia?
Drop Bears tuaj yeem pom nyob rau hauv thaj tsam hav zoov loj ntawm Great Dividing Range hauv South-Eastern Australia. Txawm li cas los muajKuj tseem muaj qee qhov kev ceeb toom ntawm lawv los ntawm South-East South Australia, Mount Lofty Ranges thiab Kangaroo Island.
