Nyama ndi amene ndi momwe iwo amasiyana ndi nyama zina?

nyama ndi ndani? kalasi Izi zikuphatikizapo nyama zotsogola kwathunthu nyama zosiyanasiyana: a njovu yaikulu ndi yaing'ono mbewa-vole, yolusa nkhandwe ndi nkhosa ofatsa. Iwo amakhala ndakatulo onse: pa dziko, mu nyanja (dolphin ndi anangumi), mpweya (mileme). Koma chimasiyanitsa zomwe ndi zinyama zina? Ofunda magazi? Mbali chomwecho ndi chibadidwe ndi mbalame. Luso kubereka moyo wamng'ono? Chabwino, choyamba, osati nyama zonse zimene viviparous. Ena mwa iwo kuikira mazira, monga, Mwachitsanzo, platypus, pamene achinyamata ku kubadwa amakhala ngati mazira mwana ndipo kuti "zipse" mu wapadera chofungatira-thumba pa mimba ya amayi ngati kangaroo a. Ndipo kachiwiri, pali viviparous ndi ena zokwawa, nsomba ngakhalenso tizilombo. Pa funso la amene nyama kuposa amasiyana nsomba, yankho lake ndi losavuta: kukhalapo kwa kuwala. nyama zonse kupuma mpweya. Choncho, nsombazi sayenera adzauka pamwamba kupuma, mosiyana monga maonekedwe dolphin wake, amene akhoza kungoyankha adzawonongedwa popanda mpweya wopatsa moyo. Koma, mobwerezanso, mapapo ndi achule ambiri wosazindikira, ndi mbalame zonse.

Pakati yaikulu nyama kusiyana magawo awiri okha tingaone kuti amaonetsera amene nyama. Ndi pamaso pa tsitsi ndi ng'ombe kudya mkaka. akazi Zonsezi magulu a nyama ndi pa thupi la zopangitsa mammary, amene ali odzazidwa ndi madzi michere wangobereka kumene. Mundawu ndi anapereka dzina la nyama zonse. Mwa zina zomwe nyama, inu mukhoza kuwonjezera pamaso pa nsagwada m'munsi, wopangidwa mwa fupa limodzi, ndi zakulera umene umawalekanitsa Mapapo ndi mtima kwa mundawo m'mimba.

Koma chofunika kwambiri kusankha nyama ndi ubongo amazipanga anayamba ndi kusintha khalidwe dongosolo. Izi zikutanthauza kuti anthu awiri a mtundu womwewo, kamodzi mu moyo wofanana mu moyo mwina zinthu zosiyana. Iwo amatha kugwiritsa ntchito luso, kusunga ndi kulingalira. Nzosadabwitsa kuti mu kalasi ya nyama anaonekera view wa sapiens Homo - Homo sapiens. Chabwino, kupatula Iye pa dziko lapansi, ukhale mitundu za 5000 a nyama zina yagawidwa Systematics 1,100 genera, mabanja 140 ndi malamulo 18 ndi mabanja 3.

No zochepa chidwi ndi miyendo ya nyama. Pakuti onse zosiyanasiyana kwawoko (ogwirira misomali, zala ndi anyani anthu, ziboda), iwo onse kukathera ndi mafuta tentha mthupi - ndi fingernail. Mu nyama zimene zimakhala m'madzi, pasukuluyi adzakhala manja. Mbali imeneyi ndi kuti azolowere zinthu zachilengedwe anathandiza chakuti nyama kuti unafala m'dziko lonse lapansili ndi atenga onse kagawo kakang'ono moyo - pa dziko, mu mlengalenga, pa nyanja, pa dziko iyense. Chifukwa luso kukhalabe kutentha thupi la magazi ofunda, iwo akhoza kukhala moyo mu Arctic (kumalo ozizira zimbalangondo) ndi otentha (mbewa yoyenda modumpha, ngamila) zipululu.

funso lakuti: pamene panali nyama loyamba? Palibe kukaika kuti nyama wamkulu anapeza zaka zinyamazi lapansi. Ndiye iwo anali makamaka ang'onoang'ono thunthu, ndipo anasonyeza zizindikiro za "zokwawa nyama ngati." Pamene asayansi ntchito ndi mafupawa, ndi akanagwiritsa ntchito kokha mafupa, n'zovuta kudziwa zimene siteji nyama adawoneka ubweya ndi luso kudyetsa ng'ombe mkaka. Ngati ife kuyambira muyezo edinokostnoy mandible, tikhoza kunena motsimikiza kuti ngakhale 215 miliyoni zapitazo South Africa, Europe ndi China anthu yaing'ono (15 cm), nyama kooneka ngati shrew ano.