Nyob hauv hiav txwv thiab dej hiav txwv, muaj cov tsiaj nrog lub peev xwm thiab zoo kawg nkaus los tsim hluav taws xob. Ib tus tsiaj no yog hluav taws xob hluav taws xob.
Stingrays tsim hluav taws xob tau li cas?
Txhua tus ua tsaug rau lub tshuab hluav taws xob tshwj xeeb hauv cov tsiaj no. Lawv keeb kwm nyob rau hauv ob qho tib si dej hiav txwv thiab ntses ntses. Nws tau paub tias qee qhov ntawm lawv cov yawg koob faus neeg tau lub cev tib yam. Niaj hnub nimno ichthyology muaj ntau dua 300 ntau hom ntses sib txawv nrog cov kab hluav taws xob. Cov kabmob no tau hloov kho cov leeg. Lawv qhov sib txawv hauv lawv qhov chaw nyob hauv qee yam "electrofishes". Piv txwv, hauv pob zeb tawv, lawv muaj lub raum-cov duab.
Hauv cov lus yooj yooj yim, cov kab hluav taws xob ntawm cov stingrays yog ib hom mini-tshuab hluav taws xob uas tsim kom muaj qhov them tau tam sim no. Qhov kev them nqi no yog txaus rau immobilize tsis tsuas yog ntses, tab sis kuj yog ib tus neeg! Muaj cov kws tshaj lij uas hais tias kev tsim kho tuaj yeem tsim tawm 300 វ៉ុល nyob rau hauv ib zaug. Cov kab hluav taws xob muaj nyob hauv dorsal thiab plab plab hauv lub cev ntawm "hluav taws xob ntses" no. Lawv tuaj yeem muab piv rau cov roj hluav taws xob lossis roj hluav taws xob.
Txhua qhov ntawm cov kabmob no muaj ntau lub phiajcim hluav taws xob sib sau ua ke rau hauv kab. Cov no raug hloov kho cov hlab ntsha, cov leeg nqaij thiab cov qe ntshav. Ib qho peev txheej sib txawv yog tsim nyob nruab nrab ntawm lawv cov qias. Cov kab hluav taws xob hauv nruab nrog yog sab hauv los ntawm cov ceg tshwj xeeb ntawm lub ntsej muag, lub ntsej muag thiab lub paum ntawm cov leeg, uas, nyeg mus kom ze rau sab hauv electronegative ntawm daim ntawv hais saum toj no.
Thaum twg stingrays tsim hluav taws xob?
Cov tsiaj no siv qhov tshwj xeeb ntawm cov khoom siv hluav taws xob hauv ob rooj plaub: yog tias lawv tau hem los ntawm kev phom sij, lossis thaum mus yos hav zoov (tshawb rau cov neeg raug tsim txom). Tsis yog, cov stingrays lawv tus kheej tsis raug kev txom nyem los ntawm hluav taws xob paug lawv tso. Qhov no yog vim muaj qhov tshwj xeeb "kev rho tawm" uas Niam Xwm tau muab rau lawv. Los ntawm txoj kev, tsis tsuas yog cov xaim hluav taws xob muaj cov khoom siv hluav taws xob, tab sis kuj muaj qee yam ntawm lwm hom uas tsis koom nrog tsev neeg hluav taws xob: cov kabmob ntawm cov tsiaj no tsuas yog nyob ntawm tus Tsov tus tw.
Cov neeg nuv ntses uas muaj qhov tsis txaus ntseeg tau hnov tag nrho cov kev cuam tshuam ntawm qhov "hluav taws xob ntses" tseem tsis zoo siab. Raws li lawv, lub xaim hluav taws xob los ntawm xaim hluav taws xob yog nrog lub cev qoj ib ce ntev, tshee tshee hauv ob txhais ceg, poob ntawm qhov rhiab, thiab loog ntawm cov ceg sab sauv.
Nws yog qhov xav paub tias xws li kev xav tsis zoo electrogenic ntawm cov tsiaj no tau ua tiav tau zoo nyob hauv tebchaws Greece yav dhau los. Cov neeg Greek tau siv cov ntses no zoo rau kev kho mob thaum muaj kev phais mob, lossis thaum yug menyuam.
