Goldfish zoo li toothless, thiab koj yeej pom tsis tau ntau thaum koj saib rau hauv lawv lub qhov ncauj yog hais tias koj tshwm sim rau ib pliag. Yog li, goldfish puas muaj hniav?Lo lus teb yog, cov ntses kub muaj hniav,tab sis lawv lub qhov ncauj tsis zoo li lawv cov hniav. Lawv tsis yog ntses taub ntswg ntev lossis sharks nrog kab ntawm cov hniav ntse, tab sis txawm li cas los xij, lawv muaj lawv.
Pob Goldfish have Teeth?
Yog, goldfish yeej muaj hniav, tab sis lawv tsis yog li koj xav kom lawv zoo li. Lawv tsis yog tsim los rau tom thiab ripping sib nrug lawv cov tsiaj zoo li cov ntses predatory. Cia peb saib cov hniav nyiaj hniav kub kom pom tias lawv yog dab tsi.
Goldfish Hniav nyob qhov twg?
Thaum koj ntsia mus rau hauv ib tug goldfish lub qhov ncauj, tshwj tsis yog tias koj yeej rub lub qhov ncauj qhib thiab saib tob rau hauv cov ntses, koj yeej yuav tsis pom tej hniav hlo li. Goldfish cov hniav nyob rau hauv lub rear ntawm lub qhov ncauj, los yog nyob rau hauv lub rear ntawm lub caj pas, nyob rau hauv lub pharynx, yog li ntau los yog tsawg nyob rau hauv lub caj pas ntawm goldfish. Lawv hu ua pharyngeal hniav. Hos cov ntses kub muaj cov hniav, lawv tsis nyob hauv lub qhov ncauj, yam tsawg kawg tsis nyob rau hauv pem hauv ntej zoo li peb tau siv los.
A goldfish muaj 8 hniav nyob rau hauv tag nrho, 4 ntawm txhua sab. Lawv cov duab yog cais raws li "compressed". Cov poj koob yawm txwv ze tshaj plaws ntawm cov ntses kub, cov carp ntau, muaj 10 cov hniav tag nrho (5 ntawm txhua sab ntawm lub qhov ncauj). Lawv cov hniav zoo ib yam li cov molars ntawm cov tsiaj txhu feem ntau, thiab hu ua molariform.
Pob Goldfish muaj cov hniav ntse?
No, goldfish tsis muaj hniav ntse kiag li. Lawv cov hniav yog tiaj thiab ncaj ncaj, kuj hu ua compressed hniav. Lub hauv paus morphological ntawm lawv cov hniav zoo tsis to taub zoo, thiab siv cov ntses thoob dej yug ntses ua ib qho kev siv tsis yog qhov tsim nyog rau kev tshawb fawb, vim hais tias cov tsiaj kub ntses muaj cov zaub mov txawv dua li cov ntses qus. Hauv lawv qhov chaw nyob, cov ntses goldfish yog omnivores thiab muaj kev noj haus zoo heev. Tam sim no txoj kev xav ntawm kev tswj hwm yog tias lawv cov hniav zoo li cov evolutionary seem ntawm ib tug poj koob yawm txwv li cov carp.
Thaum khaws cia li tsiaj, cov ntses kub yuav siv lawv cov hniav tiaj tus los zom lawv cov zaub mov rau hauv ib lub ncuav, kom lawv nqos tau yooj yim.
Pob Goldfish Poob Hniav?
Yog lawm, qhov no yog qhov tseeb heev txog cov ntses kub, vim tias lawv cov hniav tsis tu ncua thiab loj tuaj. Nws yog qhov yooj yim zoo nkauj vim tias tsis muaj ntau lub caij nyoog ntawm cov ntses kub tsim cov hniav lwj los yog cov teeb meem ntawm cov hniav txij li cov hniav poob tawm thiab loj hlob rov qab ntawm tus nqi siab heev.
Puas Goldfish tom Koj?
Tus ntses kub tsis tuaj yeem tom koj. Tseeb, lawv tuaj yeem sim tom koj, tab sis nws yuav zoo li raug tom los ntawm tsis muaj dab tsi tab sis cov pos hniav thiab daim di ncauj los yog raug tom los ntawm tus dev tsis muaj hniav. Yog li ntawd, tsis muaj teeb meem npaum li cas nws yuav sim, nyob rau hauv tsis muaj txoj kev yuav ib tug tsis tu ncua kub ntses ua rau koj los yog ua txhaum ntawm daim tawv nqaij vim yog tom. Goldfish ntshai heev thiab hauv txhua qhov kev muaj tiag, lawv yuav tsis sim tom koj.
Conclusion
Cov kab hauv qab yog tias thaum goldfish muaj hniav; koj yuav tsis pom lossis hnov lawv, thiab lawv tsis muaj dab tsi ntau tshaj li cov hniav tiaj tus tsim los rau kev sib tsoo. Koj tsis tas yuav txhawj txog kev raug ntses kub!
