Lub porbeagle tau piav qhia thawj zaug raws li Squalus nasus los ntawm Bonnaterre hauv 1788Gunnerus tau piav qhia ua ntej xyoo 1768 ua Squalus glaucus, tab sis lub npe no twb tau siv rau xiav shark., tam sim no Prionace glauca. Lub npe siv tau tam sim no ntawm tus shark no yog Lamna nasus.
Thaum twg porbeagle nrhiav tau?
thawj qhov kev piav qhia ntawm porbeagle tau sau los ntawm Fab Kis tus kws tshaj lij Pierre Joseph Bonnaterre nyob rau hauv 1788 Tableau encyclopédique et methodique des trois règnes de la nature, thiab raws li qhov ua ntej 1769. account los ntawm Welsh naturalist Thomas Pennant.
porbeagle sharks pom nyob qhov twg?
Porbeagle sharks pom thoob ntiaj teb hauv ib pawg ntawm ~ 30 ° txog 60 °S nyob rau yav qab teb Hemispherethiab feem ntau ntawm 30 ° thiab 70 ° N hauv dej hiav txwv North Atlantic thiab Mediterranean. Kev tshawb nrhiav caj ces tau txheeb xyuas ob tus neeg nyob ib leeg, hauv North Atlantic thiab Southern oceans.
Puas yog porbeagle a shark?
Tus porbeagle shark yog ib tug brilliant 'mackerel' xiav nrog lub plab dawb thiab tus cwj pwm dawb ntawm lub hauv paus ntawm lub dorsal fin. Nws yog ib tug muaj zog tab sis streamlined shark nrog ib tug taw tes snout thiab loj dub ob lub qhov muag tsis muaj hau tiv thaiv.
Porbeagles nyob qhov twg?
porbeagle sharks nyob qhov twg? Porbeagles tsis txaus siab rau kev so rau hnub sov sov. Hloov chaw, lawv nyiam cov dej nyob rau sab txias, gravitating rau qaum teb thiab sab qab teb Atlantic thiab sab qab teb Pacific dej hiav txwvWeirdly txaus, lawv tsis nyob rau hauv sab qaum teb Pacific, txawm tias nws txias. muaj.
