Zakin zaki mai cin naman dabbobi ne kuma memba ne na ɗayan manyan halittu irin na manyan kato. A yau zaki yana daga cikin manyan kuliyoyi, kuma matsakaicin nauyin namiji na wasu ƙananan abubuwa ya kai kilogiram 250 ko fiye.
Rukunan dabbobi masu farauta
A cikin rarrabuwa na farko, manyan rabe-raben zaki guda biyu an rarrabe su a al'adance, kuma ana daukar zakin Barebari mafi girma. Babban wakilcin abubuwan rarrabuwa an wakilta ta girman da bayyanar abin motsawar. Bambancin banbanci a cikin wannan halayyar, da kuma yiwuwar bambancin daidaitaccen mutum, ya ba masana kimiyya damar soke matakin farko.
A sakamakon haka, an yanke shawarar kiyaye manyan ƙananan zakin takwas kawai:
- Asianasashen Asiya, waɗanda aka fi sani da zaki na Persia ko Indiya, tare da ɗan tsugunno kuma ba mai kauri sosai ba;
- gabaɗaya ɗan adam ya kashe shi, Barbary ko Barbary lion, wanda ke da jiki mai ƙarfi da launuka masu duhu, mai kauri;
- wani ɗan Senegal ne ko kuma zakin Afirka ta Yamma, fasalin sifa wanda shine kyakkyawar gashi mai haske, matsakaiciyar jiki da ƙanƙantar ƙanƙantar da kai;
- zaki na Arewacin Kwango ba shi da wani nau'in nau'in mahaukaci wanda yake na dangi kuma yana da kamanni na waje da sauran dangin Afirka;
- Zakin Masai ko na Afirka ta Gabas, wanda yake da halaye da tsayayyun gaɓoɓi da keɓaɓɓu, kamar dai "ya tsefe" motsin baya;
- zaki na kudu maso yammacin Afirka ko Katanga zaki, wanda ke da nau'ikan sifofi daban-daban, launuka masu haske a kan dukkan fuskar jiki;
- peananan kabilu sun mutu a ƙarshen karni na sha tara - Cape lion.
Amma wani abin sha'awa tsakanin mazaunan fararen mutane ne kuma baƙin Zaki... Tabbas, farin zakoki ba rukuni bane, amma suna cikin nau'ikan dabbobin daji masu dauke da cutar kwayar halitta - leukism, wanda ke haifar da launin launuka mai haske. Irin waɗannan mutane masu launuka na asali ana ajiye su a yankin Kruger National Park, haka kuma a cikin Resba na Timbavati, wanda ke gabashin Afirka ta Kudu. Fari da zinaren zinare ana kiransu albinos da leucists. Kasancewar bakunan zakuna har yanzu yana haifar da rikice-rikice da yawa kuma masana kimiyya sunyi tambaya.
Black zaki a cikin yanayi - ka'ida da aiki
Al’amarin albin, wanda aka bayyana a cikin launin launi mara kyau, sananne ne mai adawa da melanism, wanda galibi ana lura dashi a cikin yawan damisa da jaguar. Wannan lamari yana ba da damar haihuwar mutanen da ke da launi baƙar fata baƙon abu.
An dauki dabbobin daji-melanists da dama a matsayin nau'in masu fada aji a duniyar yanayin yanayi. Irin wannan dabbar tana samun launin launi saboda kasancewar yawan melanin a cikin fata. Ana iya samun ƙarin matakan launukan launuka masu duhu a cikin nau'ikan dabbobin daban-daban, gami da dabbobi masu shayarwa, dabbobin ruwa da dabbobi masu rarrafe. Daga wannan ra'ayi, bakin zaki ana iya haife shi da kyau, a yanayi na ɗabi'a ko na ɗabi'a, da kuma zaman talala.
A matsayinka na ƙa'ida, melanism yana faruwa ne ta hanyar tsarin daidaitawa, don haka mutum ya sami launin baƙar fata wanda ba shi da halaye don rayuwa da samun damar haifuwa a gaban halayen waje mara kyau.
Yana da ban sha'awa! Saboda bayyanar melanism, wasu nau'in dabbobi na iya zama kusan bayyane ga masu farauta, yayin da ga wasu nau'in wannan fasalin yana ba da wasu fa'idodi kuma yana taimakawa farauta cikin nasara cikin dare.
Daga cikin wasu abubuwa, dole ne a tuna cewa melanin yana taka muhimmiyar rawa a lafiyar dabba, wanda hakan ya faru ne saboda iyawar launukan launuka su sha wani adadi mai yawa na iskar ultraviolet da kuma hana lalacewar radiation. Hakanan, masana kimiyya sun gano cewa waɗannan dabbobin suna da ƙarfin jimrewa kuma suna dacewa da rayuwa cikin mummunan yanayi, saboda haka bakin zaki a yanayi da kyau sun rayu.
Shin akwai bakin zaki
Daga cikin mafi yawan dabbobi masu shayarwa, ana ganin bayyanar launin baƙar fata a cikin dangin dangi. Sanannun yanayi kuma masana kimiyya da yawa sunyi nazari a kansu damisa, cougar da jaguar, waɗanda jikinsu ya rufe da baƙin ulu.
Irin waɗannan dabbobi galibi ana kiransu da "baƙin panthers". Kimanin rabin yawan damisa dake zaune a cikin Malesiya suna da irin wannan launin baƙar fata mai ban mamaki. Yawancin mutane masu launin baki suna zaune a yankin Malacca da tsibirin Java, da kuma Aberdare Ridge a yankin tsakiyar Kenya.
Black zaki, hoto wanda galibi aka samo shi akan Intanet, zai iya rayuwa cikin ƙarancin haske, inda dabba mai duhu zata zama mafi ƙarancin sanarwa. Kusan shekaru goma sha biyar na binciken da aka buga a New Scientist ya goyi bayan gaskiyar cewa melanism na iya zama dole ga jikin dabba don ƙara juriya ga ƙananan ƙwayoyin cuta.
Ana tunanin fasalulluran abubuwanda ake samarwa don samarwa masu cutar cikin jiki kariya daga mafi yawan cututtukan kwayar cuta. Zai yiwu idan an kama zaki mai zaki a bidiyo, zai zama mafi sauƙin kafa gaskiyar game da rarraba ta.
Black zaki - fallasawa
Amincewar masana kimiyyar lissafi game da kasancewar baƙar fata zakoki, a yau, ba ta da goyan bayan duk wasu bayanan gaskiya. A ra'ayinsu, bakunan zaki, waɗanda yawansu bai wuce 2 a duniya ba, na iya zama cikin Farisa da Okovango. Koyaya, idan aka ba da gaskiyar cewa dabbobin launuka masu duhu waɗanda ba su dace da farauta ba a cikin shroud ɗin ba za su iya samun isasshen abinci da kansu ba, yiwuwar yaduwar su ba komai.
Tabbatar da wanzuwar irin wadannan zakunan ta hanyar kasancewar hotunan bakar fata mai cutarwa a jikin rigunan makamai ko kuma a sunayen mashaya giyar Turanci shima abu ne mai matukar muhimmanci. Bayan wannan ma'anar, zakuna masu launin shuɗi, kore ko ja ya kamata suma su kasance a cikin yanayin yanayi. Amma hotunan baƙar zaki, wanda a cikin ɗan gajeren lokaci ya tattara ra'ayoyi marasa adadi akan Intanet kuma ya haifar da farinciki mara misaltuwa na masoyan duk wani abu da baƙon abu, sune kawai Photoshop masu nasara sosai.
