Babbar dabba duniya: blue Whales

The most dabbobi a duniya ta teku, blue Whales isa gaske gigantic rabbai - har zuwa 33 mita kuma ku auna nauyi da wadannan Refayawa ne fiye da 150 tons. Don kwatanta, wannan adadin weighs 50 , giwayen Afrika. Domin ya aiki rayuwa dabba ake bukata a kowace rana miliyan daya da adadin kuzari. Blue Whale nasa ne da baleen Whales (HALITTAR Whales), da hankula rage cin abinci - shi ne mai kananan kifi, crustaceans, squid, plankton da krill.

Gano cewa adadin abinci ne mai sauki idan ka san inda da yawa daga crustaceans. A kan haka da ake kira "ciyar da filayen", inda mafi girma taro na plankton, yana yiwuwa a ga da dama Whales, amma fiye da 3 mutane a cikin kungiyar, suka yawanci ba tattara.

Blue Whales ne na kowa a ko'ina cikin duniya ta teku daga Arctic da Antarctic, yayin da rarrabe da dama subtypes:

• arewa.
• da kudu.
• Dwarf.
• India.

A farko biyu jinsunan fi son mai sanyaya ruwan teku, da kuma gajeren da kuma Indian samu a wurare masu zafi tekuna. Jagoranci a Kadaitaccen salon, wadannan dabbobi masu shayarwa sun ɓullo da nasu na asali hanyar sadarwa. Wani lokaci manya samar da kananan kungiyoyin, ko da yake har a cikin irin wannan karamin al'umma, sun ci gaba da kansu.

Big blue Whale ba shi da wani m ji na wari, kuma kusan hana gani, amma ya kulawa don sadarwa ta hanyar "mai tsarkakewa." Enlistment ne sauti na maza a lokacin da ma'abota kakar. Wannan song ne mafi kamar wata muguwar kuka cewa za a iya ji a nesa na 1600 km. Mãtã, kuma, wani lokacin magana, amma kawai da ta cub. A cewar masana harkokin kimiyya, blue Whales na nazarin sauti, saboda wannan ne kawai hanya a gare su don sadarwa tare da waje duniya. Bugu da kari, ka lura da dabara da kuma m na wadannan dabbobi.

kiwo kakar faruwa kowace shekara biyu. A cikin hali na zuriya daukan 10-11 watanni. Bayan haihuwar jariri mace ciyarwa da shi tare da madara 7-8 watanni, a karshen wannan lokaci, matasa Whale weighs a kan 20 ton da kuma tsawon fiye da 20 mita. A wannan lokaci, fata na baby an riga an burge marine parasites. Gudana bincike ya gano wani gagarumin yawan ciki da kuma na waje parasites Whale. A lokacin ziyararsa a filayen ciyar fara tasawa dabba da aka rufe diatoms, wanda masana kimiyya sun kidaya 31 jinsunan Whale a kan daya kawai. Daga wannan dabba bace fata ne yellow-kore a cikin launi, da yawa mollusks rayuwa a cikin wannan wuri, dama a kan dabba ta jiki.

Domin shekaru, blue Whales aka kare ta mutum. Domin hakar na whalebone, mai kuma ramammu mutane sun farauta wadannan Refayawa, rage yawan 100 sau. A farkon karni na 20th, da uncontrolled kama kifi ya haddasa abin da yake a yanzu da duniya yana da wani fiye da 1500 mutane. Tsinkaya daga masana kimiyya ne m: view ba za a iya ceto daga bace daga fuskar duniya. A Arewa Atlantic a lokacin akwai ba fiye da 100 adult Whales.

Su nau'i nau'i na ci gaba saboda zuba a cikin teku, mai leaks da kuma aiki adam baki a yanayi. Too m halitta girma karfi damuarn zaman majalisar na yawan jama'ar, yayin da abun ciki a cikin wucin gadi yanayi ne ba zai yiwu ba saboda girman da dabbobi masu shayarwa.