Isiphi isilwane esinamazinyo emakhaleni aso?

Isigeniso: Amazinyo emakhaleni

Lapho sicabanga ngamazinyo, ngokuvamile sicabanga ngawo emlonyeni wesilwane. Nokho, ezinye izilwane zinamazinyo emakhaleni azo, ezifeza izinjongo ezihlukahlukene njengokuzivikela, ukuzingela, nokuxhumana. Lawa mazinyo awukuziphendukela kwemvelo okuye kwasiza lezi zilwane ukuba ziphile ezindaweni zazo. Kulesi sihloko, sizoxoxa ngezilwane ezintathu ezinamazinyo emakhaleni azo: i-narwhal, i-saiga antelope, nemvukuzane enekhala lenkanyezi.

I-Narwhal: Umkhomo onamazinyo oyingqayizivele

I-narwhal iwumkhomo onamazinyo aphakathi nendawo ohlala emanzini ase-Arctic eCanada, eGreenland naseRussia. Esinye sezici eziphawuleka kakhulu ze-narwhal ibamba layo elide elizungezayo eliphuma odebeni lwayo olungenhla. Leli bamba lingakhula lifinyelele kumamitha angu-10 ubude futhi empeleni liyizinyo eliguquliwe.

I-Narwhal's tusk: Izinyo eliguquliwe

I-narwhal yizinyo elide, eliqondile, elinombala wendlovu elikhula odebeni olungaphezulu lwe-narwhal. Iqukethe ingqikithi emaphakathi ye-dentin, ezungezwe ungqimba loqweqwe lwawo ngaphandle. Ngokungafani namazinyo amaningi, akhula aqonde emhlathini, uphondo lwe-narwhal lukhula luthandelene, njengophondo lwe-unicorn.

Inhloso ye-Narwhal's tusk: Ukuzivikela, ukuzingela, ukuxhumana?

Inhloso ye-narwhal tusk ayikaziwa, kodwa ososayensi baye bahlongoza izinkolelo-mbono eziningana. Abanye bakholelwa ukuthi ibamba lisetshenziselwa ukuzivikela ezilwaneni ezidla ezinye, kuyilapho abanye bethi lisetshenziselwa ukuzingela izinhlanzi noma njengethuluzi lokubhodloza eqhweni. Abanye abacwaningi bakholelwa nokuthi ibamba lingasetshenziselwa ukuxhumana namanye ama-narwhals.

I-Saiga Antelope: I-unicorn ye-steppe

I-saiga antelope iyisilwane esibukeka ngendlela eyingqayizivele esihlala ezindaweni ezinotshani zase-Eurasia. Zaziwa ngamakhala azo ahlukile, amade futhi axega, anamakhala amabili amakhulu. Ikhala lenyamazane i-saiga lijwayela ukuphefumula nokupholisa endaweni eshisayo neyomile.

Ikhala lenyamazane ye-Saiga: Ukujwayela ukuphefumula nokupholisa

Ikhala lenyamazane okuthiwa i-saiga antelope yakhelwe ukuhluza uthuli futhi lipholise umoya oshisayo ewuphefumulayo. Amakhala ayo amakhulu futhi azisiza ukuba zithole iphunga lezilwane ezidla ezinye ezikude, okuzivumela ukuba zithole ingozi futhi zibaleke ngesikhathi.

Amazinyo e-Saiga antelope: Asetshenziselwa ukumba nokuzivikela

Amazinyo enyamazane ye-saiga atholakala ngaphambili kwekhala lazo, ngaphezu nje kodebe lwawo olungaphezulu. Lawa mazinyo asetshenziselwa ukumba izimpande nezilimo eziyizigaxa, okwenza ingxenye ebalulekile yokudla kwawo. Ziphinde zisebenzisa amazinyo azo ukuze zizivikele ezilwaneni ezizingelayo, njengezimpisi nezinkozi.

Imvukuzane enekhala lenkanyezi: Ingcweti yokuthinta

Imvukuzane enekhala lenkanyezi iyisilwane esincelisayo esincane, esifana nemvukuzane esihlala ezindaweni ezingamaxhaphozi ezisempumalanga yeNyakatho Melika. Yaziwa ngekhala layo elihlukile, elimbozwe ngamathente amancane, aphinki afana nenkanyezi. Lawa matende azwela kakhulu lapho ethintwa futhi asiza imvukuzane ukuthi ihambe futhi ithole inyamazane emanzini amnyama namdaka.

Ikhala lemvukuzane enekhala lenkanyezi: Isitho esizwela kakhulu

Ikhala lemvukuzane enekhala lenkanyezi liyisitho esizwela kakhulu esimbozwe kuma-receptors wezinzwa angaphezu kuka-25,000. Lama-receptors avumela imvukuzane ukuthi ibone ngisho nokunyakaza nokudlidliza okuncane emanzini, okuyisiza ukuba ithole inyamazane njengezinambuzane, izikelemu, nezinhlanzi ezincane.

Amazinyo emvukuzane anekhala lenkanyezi: Isiza ngokubamba inyamazane nokuzivikela

Amazinyo emvukuzane enekhala lenkanyezi aphambi kwekhala layo, ngezansi nje kwamathente. Lawa mazinyo abukhali futhi acijile, asiza imvukuzane ukuthi ibambe futhi ibulale inyamazane yayo. Ziphinde zisebenzisa amazinyo azo ukuze zizivikele ezilwaneni ezidla ezinye, njengezinyoka nezinyoni ezidla inyama.

Ezinye izilwane ezinamazinyo emakhaleni azo

Ngaphandle kwe-narwhal, antelope i-saiiga, nemvukuzane enekhala lenkanyezi, kunezinye izilwane eziningana ezinamazinyo emakhaleni azo. Lezi zihlanganisa i-shrew-nosed shrew, i-Hispaniolan solenodon, ne-African elephant shrew.

Isiphetho: Amazinyo ekhaleni, inzuzo yokuziphendukela kwemvelo

Amazinyo ekhaleni angase abonakale njengento engavamile, kodwa afakazele njengenzuzo yokuziphendukela kwemvelo ezilwaneni eziningi. Kusukela ebambeni le-narwhal kuya emazinyweni enyamazane ye-saiga kanye nekhala elizwelayo imvukuzane enekhala lenkanyezi, lokhu kuzivumelanisa nezimo kuye kwasiza lezi zilwane ukuba ziphile futhi zichume ezindaweni zazo.