Dolphin - hove kana kwete?

Nguva dzose zvakaoma kuti apfuura Dolphin chokuratidza, nekuti apo zvimwe unogona kuona zvisikwa wakadaro ichiyevedza uye shamisa! Naizvozvo Dolphins pagore akasvinudzwa mumaguta akawanda mutariro kukwezva vaoni vakawanda sezvinobvira. Asi pasinei ichi vanodzedzereka kukurumbira akapoteredza Dolphins kunyange nhasi Rinoengerera ane Aura chakavanzika. Uye mumwe zvakavanzika: vari zvisikwa izvi zvinoshamisa? hove ichi kana kwete?

sanzwisisika chakavanzika

Dolphin - a tamba vagari yamakungwa, iyo inowanikwa munharaunda dzakawanda pasi pose. Sezvo anogara mumvura, vanhu ruzivo vakajaira kufunga nezvazvo kuti ndeve mumwe mhando hove. Pashure pezvose, sei zvimwe munhu kutsanangura chokwadi kuti haagoni kupedza maawa kuti kuyangarara pamusoro pemvura? Chete mhedziso uta uye pamberi zvimbi, izvo zvinhu zvinokosha chokufunga vose vagere pasi pemvura umambo.

Zvisinei, masayendisiti akaongorora hunhu zvisikwa izvi vakauya wakasiyana zvachose mhedziso. Maererano tsvakurudzo, kuti Dolphin - mumiririri vekirasi mhuka. Uye hama dzacho yepedyo vari hove huru, muurayi hove huru uye mhou gungwa. Asi nei zvakadaro?

uchapupu husingarambiki

Chokwadi chokuti Dolphin - the mhuka iri, maererano zvinhu zvakawanda. Havagoni kuramba navo, saka zvazvinosarira chete kutora maonero ichi. Saka ndicho chikonzero nei Dolphin - hazvisi hove:

1. Havana gills, uye pachinzvimbo kunzi chiedza venyama kushandisa. Ngavarumbidze yakasiyana zvishoma avo kuti zviri pano mhuka, zvichiri mumwe chete muviri.
2. Dolphins All vane ushamwari-ropa rechiJudha chairo. Akadaro chinhu zvamboonekwa mune hove.
3. zvisikwa izvi yakanaka ugozvara kurarama vana, pane mazai, kufanana zvavo pasi pemvura dzomuzana.
4. Vakaguta vana mukaka. Ndokusaka anotaurwa mukirasi mhuka.
5. Uye pakupedzisira, kuongorora marangwanda pamusoro Dolphins, masayendisiti rwawana hwokuti pamazuva akare, zvisikwa izvi gungwa akafamba nyika.

Asi sei zvichikosha kuti vakachinja dzavo dzose dzinogarisana mumvura dzezvimwe? Chii chakaita kuti kutamira nyika itsva? Chii nyaya Dolphin kwechokwadi? Uye kana pane zvinhu kuti ngaadarowo?

Zvikonzero shanduko dzinogarisana

Kutaura zvazviri, Dolphins - havasi chete zvisikwa kuchinja chinhu kune umwe. Somuenzaniso, yakakurumbira zvikuru nyaya iri apo vokutanga zvipenyu akasiya mvura kudzika uye akatanga kundoshora nyika. Zvisinei, muchiitiko ichi, zvakaitika mumwe nzira kumativi. Zvisinei, hazvina zvinokosha kuti nyaya. Nokuti zvikuru kukosha Ndokusaka ichi chakaitika.

Pano masayendisiti, zvinosuruvarisa hamungavuyipo pamwe chete pfungwa. Asi, Ungangove, chikonzero chaiva yokushomeka kwezvokudya munyika, iyo iri nei mamwe marudzi vaifanira kuchinja kuita dzakasiyana wokuvhima. Kunyanya, madzitateguru cetaceans zvose, kusanganisira Dolphins, dzidza kuti abate zvavo mumvura. Izvi zvakaita kuti chokwadi kuti vava zvakawanda uye kupedza nguva yakawanda pedyo zvitunha mvura, haina vakatamira zvachose.

Chinyorwa

Panyaya nhoroondo uchapupu, vamwe paleontologists vakakwanisa kusika zvinyorwa hwakanyatsorwisa yakarurama kunotouraya cetaceans. Sezvingatarisirwa, rine mavara bofu, asi havasi kudaro zvinokosha kuti vasaziva mufananidzo yose.

Mumiriri mukuru cetaceans ndiyo pakitsetus. marangwanda ake akawanikwa ari munharaunda vemazuva Pakistan, uye masayendisiti zvinofungidzirwa Years hapana asingasviki mamiriyoni 48.. Externally mhuka iyi yakanga sembwa ndizvo makumbo ake dzakaonda dzakaguma zvishoma nenzara paminwe yake. Ivo vakagara pedyo zvitunha mvura, kudya hove kana crustaceans, uye nokudaro zvinogona akarinyika mumvura kuitira kuti abate mhuka dzavo. Pakitsetus akatungamirira mararamiro sezvinoita nemicherechedzo ano. Zvino ngationei kwapera madzitateguru cetaceans:

• Mumwe anotevera zvokukura shanduka akava pakitsetusa ambulocetus, vaigara vanenge mamiriyoni 35. Makore akapfuura. chikara ichi raiva basa raishamisa chaizvo size: somuenzaniso, kureba kwayo anenge 3-3.5 metres, uye uremu vanofanira siyana pakati 300 makirogiramu. Nechokunze, akatarisa akafanana garwe uye anogona kurarama mumvura nepanyika.
• Chimwe muzukuru pakitsetusa aiva rodhocetus. Animal Zvisaririra pakuonekwa akanga akafanana zvisimbiso ano, asi akanga elongated shaya nevakawanda canines. Aivawo nemakumbo, pakupera iyo, zvichida, akaisa Kamudzira, zvichiita kuti kushambira zvakasimba pasi mvura.
• Basilosaurus - ndechimwe zvinogona hama hove huru. Zvisinei, masayendisiti akawanda vanodavira kuti zvichida aiva hama muurayi hove huru pane tateguru noushamwari Dolphins. Izvi imhaka yokuti basilosaurus yaiva saizi zvichiita kunovhima zvinenge zvose vagere yamakungwa.
• Dorudon - basilosaurus yomumba, vaigara naye munguva imwe chete. Ane chiduku zvikuru kukura mumuviri. Zvinokosha kuziva kuti madzitateguru Dolphins pakupedzisira kubvisa zvisingakoshi uye vakatanga netsoka dzakapfava muswe zenze.

Mysteries nhoroondo

About Dolphins akanyorwa mapepa akawanda zvesayenzi uye ichiitwa yakawanda tsvakurudzo, asi nhasi kuchine zvakavanzika zhinji chokuita shanduka yavo. Zvikurukuru, masayendisiti achiri havagoni kuziva mamwe marudzi umo kuitira kuchatsiviwa mumwe. Asi chokwadi kuti zvisikwa izvi kamwe akafamba nyika, hapana mubvunzo.

Nenzira, pamwe pave genetics, zvakavanzika zvizhinji zvose vakatanga zvishoma nezvishoma kurega munzvimbo dzavo. Nguva ichangopfuura, masayendisiti akawana mashoko anonakidza zvikuru. Zvakaratidza kuti mvuu ndivo cetaceans hama kure. Just mumwe nzendo shanduka kubva Dolphins vaenda zvakadzama mugungwa, uye mvuu vakasarudza kugara pedyo nemhenderekedzo.

Well, ngationei kukurukura nevamwe zviri mhuka idzi. Patinowedzera kuziva Dolphins, kuti yavney inova ndiyo mutsetse kuti wakapatsanura Miti iyi nevamwe vagari yamakungwa uye nyanza.

dzakabudirira nenjere

Kutamba Dolphins vari kufarira uye kunyemwerera munhu anotarira navo. Zvisinei, vashoma vanoziva kuti shure maitiro ichi yakavanda ine pfungwa zvinoshamisa kusiyana navo kubva dzimwe mhuka. Somuenzaniso, kukwikwidzana navo shomanana mhando primates vari zvaiti, izvo pedyo vanhu.

Dolphins vanewo kunzwisisa kukurukurirana gadziriro yakavakirwa nemasaini uye ruzha. Kuburikidza ichi vanogona batanidza kufamba kwavo uye kundovhima sezvinoita zvakanaka kwakarongeka mashandiro. Uyezve, zvisikwa izvi vari kutsanya vadzidzi, nomusoro mifananidzo itsva uye sangano pamwe rinoshamisa nokukurumidza. Zvikurukuru, ndokusaka vari akakurumbira pakati sekasi vatambi uye entertainers.

zvishamiso echolocation

Dolphins - mumwe mashoma kwemarudzi kuti anogona kushandisa inzwi mafungu pakukurukurirana aro. Simba chiratidzo kunyange yakakwirira kuti izwi ravo inogona kubhururuka kuenda kure anoverengeka makiromita. Runyerekupe ane kuti kare, mauto aishandisa Dolphins sezvo pemvura vangu michina, sezvo vaigona kuwana mano ngozi kunyange kupfuura turbid uye yakadzika.

The zvakaipa nature Dolphins

Vanhu vanofunga zvisikwa izvi vane ushamwari chaizvo, uye unhu Vakafanana nevana. Dolphin - chaizvo chaizvo utsinye mhuka. Mushure zvose, iye chikara chaicho uye anodya chinhu muduku kwaari kukura.

Zvisinei, chinonyanya chisimba mumaitiro wake chakagadzirwa vakasarudzwa yevana. Saka, kana munhu Dolphin mhuru anoberekerwa simba, anogona kumuuraya. Tisingatauri kuti pane zviitiko apo zvisikwa izvi uchirwisa dzimwe nhengo rudzi dzavo, vachirwira ndima, kana nokungoti munhu ruvengo.