Goose vs Swan
Ob leeg swan thiab goose belongs rau Tsev Neeg: Anatidae thiab Subfamily: Anserinae. Yog li ntawd, lawv muaj ntau yam zoo sib xws, uas txhawb kev txaus siab los tshawb nrhiav qhov sib txawv ntawm lawv. Geese yog nyob rau hauv ib pab pawg neeg hu ua Tribe: Anserini, thaum swans koom rau Pawg: Cygini. Cov kev sib txawv taxonomic no muaj lub hauv paus tsim nyog uas yog lawv cov yam ntxwv tshwj xeeb, uas yog qhov tseem ceeb rau kev txheeb xyuas cov geese thiab swans cais.
Swan
Lawv tsis yog ib pawg noog uas muaj ntau haiv neeg, thiab tsuas muaj xya hom kev cais raws li Genus: Cygnus. Cob thiab cwj mem yog lub npe hu ua txiv neej thiab poj niam rspectively. Lawv yog cov tswv cuab loj tshaj plaws ntawm tsev neeg hais txog lub cev qhov hnyav thiab qhov hnyav, thiab wingspan. Swans 'wingspan tuaj yeem loj li ntau tshaj peb meters nrog lub cev ntev tshaj 1.5 meters. Lub cev hnyav txog 15 kilograms. Txawm tias lawv lub cev loj heev, swans ya mus ntev thaum tsiv teb tsaws. Cov cwj pwm ntev caj dab yog ib qho ntawm lawv cov yam ntxwv tseem ceeb tshaj plaws, uas txawv lawv los ntawm lwm cov noog ntub dej. Interestingly, ob tus cwj mem thiab cobs zoo sib xws, tsis zoo li ntau lwm cov noog. Lawv muaj cov qauv plumage yooj yim nrog cov xim sib txawv ntawm cov xim dub mus rau dawb huv. Txawm li cas los xij, colourfulness yog tsawg dua hauv swans piv rau lwm cov noog. Feem ntau ntawm cov swan hom nyob rau sab qaum teb hemisphere yog dawb (xws li mute swan), thaum Southern hemispheric hom viz. Dub swan hauv Australia muaj cov plumage dub. Muaj ntau ntawm lawv yog migratory, thaum lwm hom uas qhia hloov cov zaub mov nyiam tsis tsiv teb tsaws tag nrho. Lawv muaj lub neej sib koom ua ke, tab sis qee zaum ob khub tsis nyob ua ke. Feem ntau, cob pab tus cwj mem ua lawv lub zes rau nteg thiab incubate lub qe. Thaum lub sij hawm incubation, tus cwj mem yuav siv sij hawm ntau lub luag hauj lwm. Lub neej ntawm swan tuaj yeem nyob ntawm 8 - 20 xyoo nyob rau hauv qus, tab sis muaj cov ntaub ntawv ntawm 50 xyoo swan nyob rau hauv captivity.
Zoo
Geese yog ib pawg neeg sib txawv ntawm Anatids nrog 22 hom geese tiag tiag hauv 3 genera (Anser, domesticated thiab grey geese, Branta, Dub geese, Chen, dawb geese). Cov npe hu ua geese feem ntau yog gander rau txiv neej thiab goose rau poj niam. Lawv muaj nruab nrab lub cev uas ntsuas nyob ib ncig ntawm 75 - 110 centimeters ntawm qhov ntev, 3-9 kg ntawm qhov hnyav, thiab tisspan yog li 1.5 meters. Lawv caj dab ntev dua os tab sis luv dua swans. Geese yog cov noog muaj yeeb yuj, qee zaum nrog golden plumages hauv goslings. Lawv feem ntau yog herbivorous thiab qee zaus omnivorous hauv kev noj zaub mov. Yuav luag tag nrho cov hom geese yog migratory, thiab lawv ya mus ntev heev thaum lub caij ntuj no nrhiav zaub mov zoo. Lawv yog cov khub tsiaj sib raug zoo nrog cov tsev neeg muaj zog. Cov tsev neeg no tsis tawg tab sis nyob ua ke thoob plaws lub sijhawm tsiv teb tsaws, thiab tsuas yog thaum lub caij yug me nyuam tom ntej, cov menyuam yaus yuav tawm ntawm niam txiv. Ob leeg txiv neej thiab poj niam incubate qe, thiab lawv tso lawv cov plaub ya thaum lub sij hawm no thiab regrowth tsis tshwm sim kom txog thaum lub hatchlings npaj ya. Cov noog uas ntxim nyiam no muaj txog 24 xyoo ntawm kev ua neej nyob hauv cov tsiaj qus, thiab ntev dua nyob rau hauv kev poob cev qhev.
Dab tsi yog qhov txawv ntawm Swan thiab Goose?
• Kev sib txawv ntau dua peb zaug ntau dua hauv cov geese nrog 22 hom hauv peb hom, thaum tsuas muaj xya hom swans piav nyob rau hauv ib genus.
• Cov npe hu ua txiv neej thiab poj niam feem ntau yog cob thiab cwj mem hauv swans, thiab gander thiab goose hauv geese.
• Lub cob pab tus cwj mem ua zes, tab sis tsis pab rau incubation ntawm qe. Txawm li cas los xij, gander pab goose incubate qe thiab ceev ib leeg thaum lub sij hawm incubation.
• Geese muaj tsev neeg muaj zog dua, vim lawv nyob thiab ya ua ke nyob deb, thaum swans tsis muaj kev sib raug zoo hauv tsev neeg.
• Swans muaj lub caj dab ntev, lub cev loj nrog lub dav tis piv rau geese.
• Swans tsis muaj xim zoo li geese.
• Swans yog tag nrho los yog ib nrab migrating noog, whereas yuav luag tag nrho cov geese migratory.
