Video: Cov zaub mov ntawm tag nrho cov sirenians muaj li cas?
2023 Tus sau: Isaac Wood | [email protected]. Kawg hloov kho: 2023-05-24 13:04
Manatees feem ntau yog herbivores. Lawv pub rau ntau yam submerged, tshwm sim, floating, thiab shoreline zaub. Manatees Nyob rau hauv Florida pub rau ntau tshaj 60 hom nroj tsuag xws li vaub kib nyom, manatee nyom, shoal nyom, mangrove nplooj, ntau yam algae, dej hyacinth, acorns, thiab hydrilla.
Yog li ntawd, Sirenia noj dab tsi?
Sirenians feem ntau nyob hauv sov, ntiav, ntug dej hiav txwv, lossis dej ntws. Lawv yog feem ntau herbivorous, tab sis tau paub txog siv tsiaj xws li noog thiab jellyfish.
Ib sab saum toj no, dab tsi tsiaj nyob hauv qhov kev txiav txim Sirenia? Marine Species Identification Portal: Manatees thiab Dugongs - Order Sirenia. Muaj 4 hom tsiaj ntawm sirenians, 3 manatees thiab cov nqa. Ib tug thib tsib hom, Steller lub hiav txwv nyuj, ntawm North Pacific thiab Bering Hiav Txwv, raug tua los ntawm kev yos hav zoov nyob rau xyoo 1700s. Sirenians, zoo li cetaceans, yog dej tag nrho.
Ntawm no, dugongs yog dab tsi thiab lawv noj dab tsi?
Dugongs graze ntawm hiav txwv nyom thiab dej nroj tsuag uas loj hlob nyob rau hauv abundance nyob rau hauv lub tropical qhov ntiav ntiav. Dugongs noj ntau cov nroj tsuag hiav txwv thiab feem ntau tawm hauv kev noj qab haus huv ntawm cov xuab zeb liab qab thiab cov nyom hiav txwv.
Sirenians yug me nyuam li cas?
Feem ntau ib tug calf yug txhua ob-thiab-ib-ib nrab mus rau peb xyoos. Manatees ua tsis yog daim ntawv cog lus, uas txhais tau tias lawv muaj ntau tus phooj ywg thoob plaws hauv lawv lub neej. Qhov tseeb, thaum ib tug poj niam npaj txhij yug, nws tuaj yeem ua phooj ywg nrog ntau li nees nkaum tus txiv neej, feem ntau tib lub sijhawm. Tus nyuj nyob ze nws niam mus txog rau ob xyoos.