Ndikudabwa momwe zikuwonekera?

Anthu ambiri amakonda zachilengedwe, ndipo nthawi zina amadana ndi njoka. Zikuwoneka ozizira, zopepuka, zowawa, zosasangalatsa. Ndipo kwa ambiri, choncho ndi-njoka zonse zimakhala ndi zolengedwa zoopsa, zoopsa ndi zovulaza. Koma kwenikweni ayi. Mudziko, ndithudi, pali mitundu yambiri ya njoka - kuchokera kuzing'onong'ono kwambiri, koma zamchere zamchere zamchere zamchere zamchere zamchere, aspir, ndi zazikulu za boa pythons, zomwe kutalika kwake ndi mamita makumi awiri. Koma m'madera athu akumidzi amapezeka pokhapokha mu zojambula, komanso ngakhale sizinthu zonse.

M'dera la Russia, mitundu yambiri ya njoka ndi strop, ndi njoka ya steppe. Chokhacho ndi chakupha. Koma panthawi imodzimodziyo, majeremusi osayeruzika nthawi zambiri amagwa pansi pogawa - iwo amavomereza mwachangu njoka zopanda nzeru mu anthu a biology ndikuwononga mwadala, poganiza kuti achotsa njoka yoopsa. Kodi zimawoneka motani? Kufotokozera m'buku lililonse la biology limanena kuti dzina loyenera la reptile iyi ndi Natrix natrix. Amakhala ku Ulaya, kupatula ku madera a polar. Zidzakhalanso zachilendo ku Far East, ku Siberia komanso pafupi ndi nyanja ya Baikal.

Chinthu choyamba chimene muyenera kumvetsera, kufotokozera momwe chikuwonekera, chiri pamatenda achikasu pafupi ndi ngalande ya khutu pamphepete mwa khosi ndi mutu wa reptile. Pakuti njoka iyi nthawi zambiri amatchedwa zheltouhimi. Chifukwa cha malo owala, n'zosavuta kusiyanitsa ndi njoka ndi othamanga.

Kutalika kwa njoka kumatha kufika 80-90 centimita. Chinthu china chosiyanitsa cha momwe izo zikuwonekera, ndi chitsanzo pa miyeso yake. Mbali yonse yakumtunda ya thupi ili ndi maonekedwe osamvetsetseka. Pa maolivi amdima, matalala akuda kapena abulauni amaoneka akuda, nthawi zambiri amakhala pa checkerboard chitsanzo. Chifukwa cha mdima wandiweyani wa mamba, anthu ena amakhalanso ndi maonekedwe onse pamtunda. Koma zomwe zimawonekera kuchokera kumbali ya mimba ndi nkhani ina. Pali masikelo ang'onoang'ono mu kukula, monophonic, utoto wofiira kapena mthunzi wa imvi.

Kawirikawiri njoka zimakhala pamphepete mwa matupi a madzi. M'mapiri, amafika pamtunda wa mamita 2500, ndipo nthawi zambiri amasankha malo okhala pafupi ndi malo okhala ndi anthu. Mwa njira, ku gawo la Ukraine ndi Belarus nthawi zambiri mumapezeka anthu okhala m'midzi. Njoka zothandiziranazi zimakhala bwino kwambiri ndipo zimapindula bwino m'malo mwa amphaka omwe amamenyana ndi makoswe.

Kotero ndi zothandiza kwambiri kuti mudziwe momwe zimawonekera. Zithunzi za zokwawazi zimakhala zojambula bwino kwambiri, kotero kuti mavuto omwe angakhale nawo m'tsogolo mwa iwo omwe awonetsedwa kam'kasu kofiira, sakuyenera kuwuka. Ndipo makamaka njoka zisamawonongedwe. Ndizochepa zachilengedwe za anthu a makoswe ang'onoang'ono. Kuonjezera apo, amadyetsanso ziwindi ndi achule. Amatha kugonjetsa anapiye a mbalame zazing'ono, koma izi zimachitika kawirikawiri.

Tsopano mumadziwa zomwe mawonekedwe wamba amawoneka , ndipo simungasokoneze ndi chowonjezera. Komabe, kuti mutetezedwe komanso chitetezo chanu, ndi bwino kupewa zozizwitsa zomwe mumaziwopa, kotero zidzakhala bwino kwa inu ndi njoka zikufulumira pa nkhani zawo za njoka.