Polar Foob Adaptation

Cov txheej txheem:

Polar Foob Adaptation
Polar Foob Adaptation
Anonim
Polar Foob Adaptation fetchpriority=siab
Polar Foob Adaptation fetchpriority=siab

Ntawm ob tug ncej muaj ntau hom ntsaws ruaj ruaj. Tag nrho cov ntawm lawv muaj qhov sib xws tias lawv tau yoog tau zoo nyob rau hauv ib puag ncig uas muaj qhov kub thiab txias.

NOJ ZAUMnws yog xav paub tias ZAUB MECH Txias thiab dej yog cov ntsiab lus uas lwm cov tsiaj npaj tsis tuaj yeem tiv taus. Nyob rau hauv tsab xov xwm no peb yuav xa mus rau feem ntau cov neeg sawv cev ntawm cov hom sib txawv ntawm cov ntsaws ruaj ruaj.

Ua tsaug rau peb qhov chaw koj yuav tau qhia koj tus kheej kom raug rau koj tus kheej txog cov tsiaj no thiab nrhiav pom yog vim li cas.

Pinnipeds

Cov Pinnipeds suav nrog peb tsev neeg sib txawv uas peb feem ntau hu ua cov ntsaws ruaj ruaj. Cov tsev neeg no yog: Otarids, Phocids thiab Odobenids. Cov qauv ntawm thawj ob tsev neeg nyob hauv dej hiav txwv arctic thiab Antarctic.

  • The Otariids, los yog cov ntsaws ruaj ruaj tsis tseeb, yog qhov txawv los ntawm kev muaj lub suab pinna thiab posterior flippers qhia rau pem hauv ntej. Nrog rau qhov uas lawv txav tau zoo dua los ntawm thaj av dua li phocids. Cov hma, tsov ntxhuav thiab hiav txwv dais yog cov sawv cev tseem ceeb ntawm tsev neeg no.
  • The Phocids yog cov foob lawv tus kheej. Lawv tsis muaj auditory pavilion thiab kev npaj ntawm lawv cov fins tom qab yog rov qab. Muaj yuav luag 20 hom foob.
  • The Odobenidae tsuas yog muaj ib hom kab tsis ploj mus: tus walrus. Lawv tsuas nyob hauv thaj tsam arctic xwb.
Polar Foob Adaptation - Pinnipeds
Polar Foob Adaptation - Pinnipeds

Adaptation to polar waters

FORSINTS yoog raws li cov dej khov, ua tsaug Cov txheej no, sib nrug los ntawm insulating koj los ntawm txias, muab rau lawv ib tug

buoyancy Qhov no ua rau lawv agility txawv tshaj plaw nyob rau hauv lub hiav txwv uas lawv tsis muaj nyob rau hauv av, qhov twg lawv yog ruam.

Cov txheej rog no tau los ntawm kev noj qee hom, txog 5 kg ntawm ntses txhua hnub. Vim li no lawv tsis yog tsiaj txhu uas cov neeg nuv ntses nyiam. Tsis tas li ntawd, qhov tseeb tias cov tsiaj nyeg tsis tu ncua ntawm cov ntsaws ruaj ruaj, sharks, raug txiav txim siab los ntawm kev nuv ntses ntau dhau, ua rau muaj kev phom sij ntau ntxiv hauv cov neeg foob.

Ntau tshaj ntawm cov tib neeg ntawm ib hom yog txaus ntshai npaum li cov neeg tsawg. Ntau dhau ua rau kev tshaib kev nqhis, kab mob thiab degeneration ntawm haiv neeg. Hauv lub ntiaj teb kev tshawb fawb, lub tswb tau raug tsa los ntawm qhov teeb meem loj no.

Polar Seal Adaptation - Kev yoog rau cov dej hiav txwv
Polar Seal Adaptation - Kev yoog rau cov dej hiav txwv

Arctic Seals

Ntau hom foob nyob hauv Arctic:

  • Arctic fur seal is one of the species in the arctic zone. Cov txiv neej loj dua cov poj niam. Lawv nyob hauv colonies nyob ntawm ntug hiav txwv pob zeb. Lawv cov tawv nqaij tsaus thiab lawv muaj lub taub hau me me thiab lub qhov ncauj txawv txawv.
  • The Harpland foob, los yog Pied Seal, nyob ntawm Arctic hiav txwv dej khov thiab Greenland dej khov. Cov xim ntawm nws daim tawv nqaij yog ib lub teeb heev nyiaj, yuav luag dawb. Hauv qab nws muaj qee qhov tsis xwm yeem tsaus nti. Tsi zoo nkauj.
  • The grey foob is the best known of the public as it is tam sim no nyob rau hauv feem ntau zoos. Tus txiv neej yog ob npaug ntawm tus poj niam. Hom no nthuav dav nws cov pej xeem. Nws cov xim txawv ntawm xim av mus rau tsaus grey heev. Nws yog ib hom voracious tshaj plaws nyob rau hauv nws cov zaub mov.
Polar Foob Adaptation - Arctic Seals
Polar Foob Adaptation - Arctic Seals

Antarctic foob

Qee hom tsiaj ntsaws ruaj ruaj nyob hauv Antarctic uas tseem nyob hauv Arctic, tab sis kuj muaj lwm hom tsiaj uas nws faib tsuas yog nyob rau sab qab teb latitude ntawm lub ntiaj teb.

  • Leopard Seal yog qhov thib ob loj tshaj plaws. Muaj cov qauv ntawm 5 meters. Nws yog ib tug heev txhoj puab heev tsiaj, uas txawm tawm tsam tib neeg. Nws pub rau penguins, ntses thiab lwm yam ntsaws ruaj ruaj. Cov tsiaj no tsuas muaj nyob hauv Antarctica thiab sab qab teb polar lub voj voog. Lawv tsuas yog cov tsiaj nyeg yog killer whales. Nws yog me ntsis kawm vim hais tias nws yog txaus ntshai mus rau lawv.
  • The Antarctic fur seal yog ib hom tsiaj uas nyob rau hauv lub verge ntawm extinction nyob rau hauv lub xyoo pua 19th, tab sis tam sim no muaj ntau tshaj 4,000,000 ntawm cov ntawv luam thiab txuas ntxiv nws qhov nthuav dav. Lawv yog cov slender ntau dua li lwm hom ntsaws ruaj ruaj. Sib nrug los ntawm thaj chaw Antarctic, lawv pom nyob rau hauv tag nrho cov ntug dej hiav txwv ntawm South American sab av loj, nyob rau thaj tsam uas ciam teb rau dej hiav txwv Pacific.
  • The Southern Elephant Seal is the biggest and heaviest seal. Cov txiv neej yog ob zaug ntev ntawm cov poj niam thiab plaub npaug lawv qhov hnyav. Muaj peev xwm ncav cuag 6 m. thiab 4000 kg. Lub npe menyuam yaus "tso" yog muab los ntawm nws qhov loj me thiab los ntawm hom luv luv uas cov txiv neej tso rau ntawm lawv lub ntsej muag. Nws qhov chaw nyiam yog cov pob zeb sab qab teb ntug dej hiav txwv.
Polar Foob Adaptation - Antarctic Seals
Polar Foob Adaptation - Antarctic Seals

Txhua cov ntsaws ruaj ruaj, txawm tias tus me tshaj plaws, yog cov tsiaj zoo. Yog li ntawd, lawv thiaj li muaj zog thiab tsis muaj tsiaj txhu ntau npaum li lwm hom, vim lawv ceev ceev thiab tiv taus.

Lawv lub cev fusiform thiab cov roj tuab tuab uas tiv thaiv lawv los ntawm qhov txias thiab ua rau lawv muaj zog, cia lawv ua luam dej txawv txawv.

Tsis tas li ntawd, lawv tuaj yeem tuav tau lawv cov pa hauv qab dej tau ntau feeb, ua rau lawv cov neeg yos hav zoov tsis muaj zog cov ntses uas lawv tau txhawb nqa.

National Geographic Image

Pom zoo: