Qhov tseeb, lawv yog qhov kev hloov pauv zoo uas lawv hloov zuj zus, ntawm nws tus kheej, hauv ntau pawg noog. Ducks thiab geese muaj lawv, zoo li gulls, cormorants, loons, pelicans, penguins, puffins thiab boobies. … Plaub ntau hom noog muaj webbed taw.
Tus noog twg tsis muaj ko taw?
Thaum cov neeg ua luam dej feem ntau - suav nrog cov ducks, geese, loons, thiab gulls - muaj cov ko taw tag nrho, ob peb tsis ua. Qhov no suav nrog cov tswv cuab ntawm tsev neeg grebe, uas peb ntiv taw pem hauv ntej yog lobed es tsis yog webbed.
Yuav ua li cas cov tsiaj muaj webbed ko taw?
Ntaus hauv ducks, geese thiab swans, gulls thiab terns, thiab lwm yam noog dej (auks, flamingos, fulmars, jaegers, loons, petrels, shearwaters thiab skimmers). Diving ducks kuj muaj ib tug lobed hind ntiv taw (1), thiab gulls, terns thiab cov phooj ywg muaj ib tug txo hind ntiv taw. Totipalmate: tag nrho plaub tus lej (1–4) tau koom nrog webbing.
Cov noog hom ko taw dab tsi?
Ntoe npaj
Ntau cov noog muaj plaub ntiv taw, nrog peb tig mus rau pem hauv ntej thiab ib sab nraub qaum, tab sis qee cov noog cov ntiv taw tau yoog raws li kev xav tau sib txawv. Woodpeckers, piv txwv li, muaj ob lub teeb rau pem hauv ntej thiab ob sab nraub qaum, txhawm rau tiv thaiv lawv tus kheej kom ruaj khov rau ntawm tsob ntoo ntsug.
Yuav siv cov ko taw webbed hauv cov noog yog dab tsi?
Vim cov noog hauv dej tsis muaj fins, webbed ko taw pab hauv ob qho tib si rau pem hauv ntej thiab rov qab ua luam dej. Ntxiv mus, lawv muaj streamlined lub cev thiab qhuav plaub uas pab lawv nyob rau hauvya thiab ua kom lawv sov hauv dej txias dua. Lawv tis luv luv thiab feem ntau siv los ua flippers ua luam dej hauv qab dej.
