Dolphin ya mbali yoyera ndi m'modzi mwa oimira banja la dolphin. Mbali yapadera ya mitunduyi ndi milozo yoyera kapena yopepuka yachikaso yomwe imayenda mthupi lonse la nyamayo. Pansi pake pamutu pathupi pake palinso mkaka wonyezimira kapena wachikasu wonyezimira. Thupi lonselo ndi lotuwa mdima. Thupi limapangidwa ngati torpedo (lochepera kumchira ndi kumutu), zipsepse zam'mbali ndizochepa komanso mosalala, ndipo kumapeto kwake kumakhala kokometsera.
Mosiyana ndi mamembala ena am'banja, mphuno ya dolphin iyi siyimveka bwino ndipo ndi mainchesi 5 okha.
Dolphin wammbali yoyera ya Atlantic ndi yaying'ono. Mwamuna wamkulu amafika kutalika kupitirira mita ziwiri ndi theka, ndikulemera mpaka 230 kilogalamu. Mkaziyo ndi wocheperako pang'ono, kutalika kwake kumafika mamita awiri ndi theka, ndipo kulemera kwake kumasinthasintha pafupifupi 200 kilogalamu.
Ma dolphin a Atlantic ndi ochezeka komanso osangalala ndi nyama zam'madzi. Polankhulana, amagwiritsa ntchito mafunde ndikumamvana patali kwambiri.
Chikhalidwe
Kuchokera pa dzina la mitundu iyi ya dolphin, dera lalikulu lomwe amakhala limayamba kuwonekera bwino. Dolphin wammbali yoyera ndi kwawo kunyanja ya Atlantic (kotentha komanso kumpoto). Kuchokera pagombe la Labrador Peninsula kudutsa magombe akumwera a Greenland kupita ku Peninsula ya Scandinavia.
Mitunduyi imapezeka kawirikawiri m'madzi aku Russia. Monga lamulo - Nyanja ya Barents ndi Baltic.
Dolphin yoyera kumbali ya Atlantic ndi mtundu wa thermophilic kwambiri. Kutentha kwamadzi komwe amakhala kumakhala pakati pa madigiri asanu mpaka khumi ndi asanu kuposa zero.
Zomwe zimadya
Chakudya chachikulu cha dolphin woyera ndi nsomba zakumpoto (hering'i ndi mackerel). Ma dolphin amadyanso ndi cephalopod mollusks (makamaka squid, octopus ndi cuttlefish).
Ma dolphin amasaka pagulu. Nthawi zambiri, ma dolphin amagwiritsa ntchito thovu la mawu komanso mpweya kuzungulira sukulu ya nsomba ndikuwombera.
Mdani wamkulu wachilengedwe wa dolphin wokhala mbali yoyera ndi anthu. Kukula kwachuma kwa Nyanja Yadziko Lonse ndipo, chifukwa chake, kuwonongeka kwake kumabweretsa kutsika kwa dolphin. Komanso, ziphunzitso za asirikali zimayambitsa kufa kwa nyamazi.
Ndipo zowonadi, kupha nyama mozungulira ndi maukonde kumapha anthu opitilira 1000 chaka chilichonse. Pamphepete mwa nyanja ya Norway, gulu lalikulu la dolphin limakokedwa ndikutsekeredwa m'mitsinje kenako ndikuphedwa.
Zosangalatsa
- Dolphin yoyera kumbali ya Atlantic ndi nyama ndipo ng'ombe imatha pafupifupi zaka 1.5. Ndipo nthawi yoyembekezera ndi miyezi khumi ndi chimodzi. Asanabadwe, yaikazi imapanga zibwenzi patali ndi gulu lalikulu.
- Ma dolphinwa amakhala m'magulu akulu. Chiwerengero cha gululo chimafika anthu 60. Ali ndi ubale wabwino kwambiri mgululi.
- Amakhala ndi moyo zaka 25 pafupifupi.
- Ma dolphin okhala ndi zoyera ndi ansangala kwambiri. Amakonda kusewera ndipo amakhala ochezeka kwambiri. Koma ma dolphin samayandikira anthu.
- Kuchokera ku Chigiriki chakale, mawu oti dolphin amatanthauziridwa ngati m'bale. Mwina ndichifukwa chake ku Greece wakale chilango chonyongedwa chinali kuperekedwa chifukwa chopha nyama iyi.
- Monga munthu, dolphin wammbali yoyera amatha kusiyanitsa pakati pa zokonda, koma mphamvu yawo ya kununkhira kulibiretu.
