10 amazing facts about dolphins

Dolphins yog amazing creatures. Peb tau npaj ib qho kev xaiv ntawm 10 qhov tseeb txog cov tsiaj no.

2. Dolphins muaj daim tawv nqaij du. Tsis zoo li ntau lwm cov tsiaj hauv dej, lawv tsis muaj nplai txhua. Thiab nyob rau hauv cov fins muaj cov pob txha humerus thiab ib qho piv txwv ntawm cov phalanges. Yog li nyob rau hauv no lawv tsis zoo li ntses. 
4. Hauv qhov xwm txheej, muaj ntau dua 40 hom ntses ntses ntses. Lawv cov txheeb ze ze yog nyuj hiav txwv.
5. Dolphins, lossis ntau dua, cov neeg laus tuaj yeem hnyav ntawm 40 kg txog 10 tons (killer whale), thiab lawv qhov ntev yog los ntawm 1.2 meters.
6. Dolphins tsis tuaj yeem khav ntawm qhov hnov ​​tsw, tab sis lawv muaj kev hnov ​​​​lus zoo thiab tsis pom kev, nrog rau echolocation zoo heev.
8. Dolphins siv suab sib txuas lus. Raws li ib qho ntawm cov ntaub ntawv tshiab tshaj plaws, muaj ntau dua 14 qhov kev hloov pauv ntawm cov teeb liab zoo li no, thiab qhov no sib raug rau cov lus ntawm tus neeg nruab nrab.
9. Dolphins tsis yog loners, lawv tsim cov zej zog nyob rau hauv uas ib tug complex kev sib raug zoo qauv ua hauj lwm.