Mastodon - ndiye baba nzou?

Hazvina chakavanzika munyika yekare inogarwa rakasiyana mhuka, iyo, zvinosuruvarisa kana sezvinei, isu havana kusikirwa kuona. Asi hombe uye hombe mapfupa kupupurira ukuru uye simba mhuka idzi. Saka, munguva yakapfuura, mhuka kunge dzakashandisa zvakatipoteredza, uye kunyange vanhu zvakafanana kwemarudzi yaigona akachinjwa pasi nawo. Vanhu vazhinji vanofarira iyi yakasiyana nedzimwe mhuka dzakadai mastodon. Mhuka zvinobva murayiro Proboscidea, izvo zvikuru zvairatidzika kuva nemapoka, asi akanga akasiyana navo.

Characteristics mastodons

Mazuvano, hapana anofunga kuti zvichida mastodon - ndiye baba nevakariri inopenya nzou. The chikuru akajairika kuchiitwa mhuka, Chokwadi - hunde, uyewo kukuru saizi ichienzaniswa nedzimwe nevagari mhuka. Zvisinei, zvakanga vakawana kuti mastodons vakanga vasisiri nzou, yatiri kuona zvino Zoo kana paterevhizheni.

Mastodons vaiona yakatotsakatika mhuka. Vane zvakafanana nevamwe nhengo hurongwa Proboscidea, asi kusiyana vakanga varipowo. Chinonyanya kukosha kwavari - izvi nemamiriro kwemeno. Izvi guru mhuka pamusoro dög hukawanika pakati molars vakanga aiwanzopiwa wokushanda soskoobraznye pazvikomo. Asi mammoths uye nzou pamusoro molars vane transverse anooneka zvikuru nemichinjiziri, izvo vakaparadzaniswa ne simende.

Kwakabva zita "mastodon"

Zvinofadza kuti mastodon - rinoshandurwa kubva mushoko rechiGiriki "munyatso", "zino". Naizvozvo, mhuka rinobva STRUCTURAL zviri mazino ayo. Zvinofanira kucherechedzwa kuti vamwe vanhu vari munzvimbo rezasi rushaya vaiva tusks, izvo (maererano masayendisiti) kushandurwa kubva wechipiri incisors.

Mastodons vaiona herbivores, asingakwanisi kukuvadza chero muvakidzani, muimba huru inonzi "Wildlife". The huru dhishi yaiva murayiro Proboscidea anosiya miti nemiti. Zvisinei, kana mhuka vakatya vanongotevera vaigona kuuraya mhuka iri pedyo kwayo kukuru uremu somugumisiro rakapinza kufamba, nokusaziva.

Vanhurume, mastodons

Mamwe masayendisiti anodavira kuti mastodon haana kusapfuudza kukura akangofananawo nzou. Vanhurume Proboscidea kukupfura aigona kusvika mamita matatu panguva hunooma. Zvinokosha kucherechedza kuti vaida aparadzane boka, kureva, vakadzi vavo vaduku. pabonde kukura kwavo kukasvika nemakore gumi-gumi nemashanu. Paavhareji, mastodons akararama makore makumi matanhatu.

Uyewo kucherechedza kuti paiva yakasiyana siyana mhuka (the US rave richirondedzerwa pamusoro), uye vanoda kuva vose zvavo vaiva zvakafanana. Asi chokwadi, mastodons vaiva Africa. Yakanga makore mamiriyoni 35 apfuura. Papera chinguva, vakatamira kune Europe, Asia, North neSouth America.

dzinonakidza zvinhu

Mastodon (yokufananidzira zvinoreva Kunosanganisira simba mufananidzo, chinhu chikuru, dzakadai mastodon dzebhizimisi mastodon mabhuku), kusiyana nzou ane tusks mu okumusoro shaya. Papera chinguva, Unorudzi Proboscidea maonero yachinja, uye uwandu tusks wacho wakaderedzwa kusvika chete peya. Masayendisiti akawana kuti mhuka akava yakatotsakatika anenge makore 10,000 apfuura. mhando dzavo, paiva vanenge makumi maviri.

Imwe shanduro kutsakatika mastodons vakava utachiona mammalian tibhii. Asi pashure Kutsakatika kwavo, havana kukanganwa. Masayendisiti vari kudzidza mapfupa, tusks pakati mastodons, zvichiita zvinhu zvitsva uye kungomhanyira nhoroondo nedzimwe mhuka. Muna 2007, DNA ave havawanzoiti mhuka nemazino ake. Research vaudzewo kuti zvisaririra zviri mastodon wakabva 50 kusvika 130 zviuru. Years.

Saka mastodon - yakasiyana kwete zvakazara kudzidza mhuka huru dzakanga pari panyika zviuru zvemakore akapfuura uye yainzi zvikuru ushamwari mhuka. Zvinonzi zvakaratidza kuti pamusoro nguva vakatanga kudya uswa, achisarudza kuti mashizha pamiti yose, asi tusks dzavo hombe nedura kuvhima kukuru.