Yog dos ib paus?
May 22, 2019
Tsis yog, dos tsis yog keeb kwm.
Cov dos yog cov zaub peb feem ntau pom vim hais tias nws yog dug tawm ntawm hauv av, yog li muaj coob tus neeg xav tias dos yog hauv paus. Nyob rau hauv qhov tseeb, tej yam zoo li lub hwj txwv nyob rau hauv lub taub hau dos yog keeb kwm ntawm dos, thaum lub taub hau dos yog lub underground metamorphosis qia ntawm dos.
