Nws tsis tuaj yeem sib cav tias cov huab cua huab cua tau dav dav rau chav kawm ntawm amphibians (amphibians). Tsis muaj ntau cov kws qav nyob nruab ntug. Niaj hnub no, tsuas yog cov neeg sawv cev ntawm tsev neeg ntawm chav daws tau tuaj yeem pom nyob hauv huab cua ntawm lub ntiaj teb Ntiaj Teb.
Copepod qav - lawv yog leej twg?
Yog lawm, nws tseem ntxov dhau heev los hais tias qav tau ua haujlwm huab cua. Cov neeg sawv cev ntawm amphibian handlepod tsev neeg tsuas yog ntau dua lossis tsawg dua ya cov qav. Lawv tsis ya siab dua cov ntoo ntoo, tab sis lawv tsis tseg tsis muaj lub siab tsiaj.
Yog tias koj ua tib zoo saib ntawm cov ntoo qav ntawm tsob ntoo zaum nyob rau ntawm cov ceg ntoo, tom qab ntawd nws yuav tsis yooj yim twv tias lawv tab tom yuav tawm. Tom qab tag nrho, feem ntau ya cov tsiaj muaj tis lossis cov khoom tshwj xeeb uas hloov lawv. Cov qav ya tau tsis muaj dab tsi zoo li no txhua txhua lub sijhawm, tab sis lawv tseem siv sijhawm tawm.
Cov txheej txheem ya davhlau
Copepod qav tuaj yeem nyab xeeb hu ua tus ntsuas lub dav hlau! Ua ntej yuav ya davhlau, lawv hom ntawm lawv lub cev me me, kis lawv cov ntiv tes kom dav thiab ncab cov kab ua luam dej, uas tau hloov mus ua ya raws hauv tsev neeg ntawm amphibians no. Tom qab ntawd lub dav hlau aeronautic dhia ua ntej, tso lawv ob txhais ceg kom, tsis muaj duab ntxoov ntxoo ntawm kev ua xyem xyav, tig mus rau hauv tib lub dav hlau.
Nws yog tsim nyog sau cia hais tias tus tsim ntawm no "lub tshuab ya" ntawm lub tus menyuam caij qav hnyav theej yog tsis tshua zoo. Piv txwv li, tsov txaij ya cov qav uas nyob rau hauv cov Islands tuaj ntawm Malay Archipelago tau yooj yim heev npog qhov nrug sib npaug li 3/5 ntawm qhov siab uas lawv dhia
Piv txwv li, tus nplaig dub uas nyob ib sab ntawm tus qav tsov (tseem nyob hauv Thaib teb thiab Nplog), dhia ntawm qhov siab txog 10 m, yoov 14 m. Nws tsim nyog teev lub dav ya Javanese. Nws, ntawm chav kawm, tsis tshua muaj peev xwm tshaj li "blackpaw", tab sis nws tseem muaj peev xwm npog qhov deb ntawm 10-12 m.
Va qav ua neej
Feem coob ntawm cov tib neeg los ntawm cov tsev neeg ntawm tsob ntoo me yog cov nyom feem ntau. Feem ntau cov neeg sawv cev ntawm cov genus ntawm kev ya qav ya. Qhov tseeb yog tias lawv cov ntiv taw ntev ntawm lawv cov paws tau sib cuam tshuam los ntawm cov xaum tshwj xeeb. Cov lus qhia ntawm cov ntiv tes yuav o tuaj.
Cov qij no yog qhov tsim nyog ua kom tus qav tuaj yeem tuav tau ruaj ruaj rau tsob ntoo ntoo tshwj xeeb. Thaum nws zaum, piv txwv li, ntawm daim nplooj uas du, qhov nrawm ntawm cov ntiv tes pluav, tig mus rau hauv lub khob tshwj xeeb uas tuav tus amphibian rau ntawm cov ceg ntoo thaum lub sijhawm so.
Lawv nyob qhov twg?
Cov tsev neeg ntawm chav nyob yog suav hais tias yog dav heev thiab suav nrog ntau tshaj 400 ntau hom. Cov chaw ib txwm muaj ntawm cov huab cua hauv ntiaj teb no yog thaj chaw chaw kub thiab muaj xyoob ntoo hauv Asia, Nyiv, Nruab Nrab thiab Qab Teb Asmeskas (suav nrog Madagascar), cov Islands tuaj ntawm Pacific thiab Indian dej hiav txwv.
