Raws li lwm yam cephalopods xws li squid thiab octopus, cuttlefish yuav tsum tau siav sai sai los yog maj mam los yog tsuas yog noj nyoos thiab ntawm lawv cov freshest kom txaus siab rau qhov tsw ntawm cov nqaij qab zib.
Puas cuttlefish muaj kev nyab xeeb noj nyoos?
“Muaj txheej thib ob uas zoo noj, tab sis yog tias koj maj mam tev nws tawm, qhov kev noj nqaij nyoos yog qhov loj. "(Nug koj tus neeg nuv ntses ua qhov no yog tias koj pom tias nws tsis yooj yim.) "Ntshiab, nqaij nyug nqaij nyug muaj kev ntxhib los mos thiab saj zoo dua rau squid," Susman hais ntxiv.
Puas muaj kab mob lom noj?
Kev piav qhia: Cov ntses cuttlefish txawv txawv thiab venomous no yog tus tswv ntawm kev hloov xim. … Kev tshawb fawb tsis ntev los no tau tshawb pom tias lawv cev nqaij daim tawv muaj cov tshuaj lom (tshuaj lom yog tias noj), ua rau Flamboyant cuttlefish tsuas yog cuttlefish thiab ib qho ntawm peb hom venomous cephalopods.
Dab tsi ntawm cuttlefish muaj tshuaj lom?
Suckers and venom
Ib txhia cuttlefish yog venomous. Cov noob rau venom ntau lawm yog xav tias yog nqis los ntawm ib tug poj koob yawm txwv. Cov leeg nqaij ntawm cov nqaij nyug nqaij nyug (Metasepia pfefferi) muaj cov tshuaj lom heev, tsis paub tseeb tias ua rau tuag taus li tus khub cephalopod, xiav-ringed octopus.
Ciav nqaij yog dab tsi?
Cab ntses yog siv los ntawm tib neeg los ua zaub mov, ua tus cwj mem, thiabrau cuttlebone, kev noj haus ntxiv muab calcium rau cov noog. CovCov ntses niaj hnub no tau tshwm sim hauv Miocene Epoch (uas tau pib txog 23 lab xyoo dhau los) thiab tau los ntawm cov poj koob yawm txwv zoo li belemnite.
