CIWUSYO 4
Ana Yaumi Yosope Yatyocele Kwa Nangolo Jumo?
Darwin jwaganisyaga kuti yaumi yosope yapali kutyocela kwa nangolo jumo. Jwalakwe jwaganisyaga kuti umi uli mpela citela cekulungwa mnope. Pali papite ndaŵi, ŵanesoni ŵatandite kulupilila kuti “citela ca umi” celeci catandite ni selo jimo. Kaneko yaumi yosope yakulekanganalekangana, mpela mitundu josope ja yakumela soni yinyama yayili pacilambopa, yatyocele ku citela celeci. Ana yeleyi ni yayatendekwe?
Ana ŵasayansi ŵajinji akusaŵeceta yamtuli? Ŵajinji akusasala kuti yindu yakuwukulidwa yayawile kalakala yikupeleka umboni wakuti yaumi yatyocele kwa nangolo jumo. Akusaŵecetasoni kuti ligongo lyakuti yaumi yosope yikwete DNA jajikusasunga utenga wosope, nikuti yaumi yosope yatyocele kwa nangolo jumo.
Ana Baibulo jikusasala yamtuli? Buku ja Genesis jikusasala kuti yakumela, yinyama ya m’mesi soni ya pamkuli ni yijuni yapanganyidwe “mwakamulana ni mitundu jakwe.” (Genesis 1:12, 20-25) Songa jeleji jikulosya kuti mu mtundu umo mpaka muŵe mitundu jakulekanganalekangana ja ya umi. Patukuŵalanga ngani ja m’Baibulo ja ya kupanganyidwa, yikusaŵa yangasimonjesya kujila kuti yakuwukulidwa yayawile kalakala yikusalosya kuti mitundu jine jasambano jawonecele mwangajembeceya.
Ana maumboni galosisye yamtuli panganiji? Ana maumboni gakusalimbikasya yajikusajiganya Baibulo kapena yaŵasasile Darwin? Ana yapatile ŵasayansi pa yaka 150 yipiteyo yikulosya cici?
ŴASAYANSI ŴANE ŴASISISYE YAŴAGANISYAGA DARWIN
M’yaka yapacangakaŵapa, ŵasayansi aŵele ali mkulandanya majini ga tuyindu twaumi twakola selo jimo, ni yakumela soni yinyama kuti amanyilile kulekangana kwakupali pasikati pa yindu yeleyi. Jemanjaji ŵaganisyaga kuti pacamanyilile kulekangana kwakwe ni pacasimicisye yaŵasasile Darwin yakuti yaumi yosope yatyocele ku “citela ca umi.” Nambotu yeleyi nganiyiŵa m’yiyi.
Ana ŵakuwungunya apatile yamtuli? Mu 1999, jwasayansi jwine lina lyakwe Malcolm S. Gordon, jwalembile kuti, “Yiwonece kuti yaumi yatyocele ku yindu yakulekanganalekangana. Pangali umboni uliwose wakulosya kuti yaumi yikusatyocela kwa nangolo jumo.” Ana pana umboni uliwose wakulosya kuti yaumi yosope yatyocele ku citela cimo caumi mpela muŵakulupililaga Darwin? Gordon jwajendelecele kuŵeceta kuti, “Cijiganyo cakala cakuti yaumi yatyocele kwa nangolo jumo ngacikukamulana ni mujiŵelele mitundu ja yindu yaumi jatukujimanyilila masiku agano. Kusalala yisyene cijiganyoci ngacikukamulanasoni ni songa jakuti yinyama yikwete makuga gakwe (phyla), kapenasoni kuti m’makuga ga yinyama mwana makalasi.”29a
Yapatile ŵasayansi pacangakaŵapa, yikusisyana ni cijiganyo ca Darwin cakuti yaumi yatyocele kwa nangolo jumo. Mwambone, mu 2009, magasini jine ja New Scientist, jakwete maloŵe gaŵaŵecete jwasayansi jwine lina lyakwe Eric Bapteste kuti, “Nganitukola umboni uliwose wakulosya kuti citela ca umi cili cisyene.”30 Magasiniji jasasilesoni maloŵe ga jwasayansi jwine, Michael Rose kuti, “Pakwamba ya ngani jakuti yaumi yatyocele kwa nangolo jumo, wosopewe tukumanyilila kuti yili yangali umboni, mwamti tukusosekwa kucenga mwatukusajiwonela ngani jakwamba ya umi.”31b
NAMBI WULI PAKWAMBA YA YINDU YAKUWUKULIDWA YAYAWILE KALAKALA?
Ŵasayansi ŵajinji akusati yakuwukulidwa yayawile kalakala yikusapeleka umboni wakuti umi watandite mwangosi kutyocela kwa nangolo jumo. Mwambone, jemanjaji ŵangakamulana pangani jakuti yindu yakuwukulidwa yayawile kalakala yikusalosya kuti somba syacenjile nikuŵa yindu yamtundu wa mola, soni yindu ya mtundu wa mola kuŵa yakwaŵa, soni yakwaŵa kuŵa yakonjesya. Nambo ana yindu yakuwukulidwa yayawile kalakala yikulosya cici kusyesyene?
Jwasayansi jwine jwakuwungunya ya yindu yakuwukulidwa yayawile kalakala lina lyakwe David M. Raup, jwasasile kuti, “Mmalo mwakupata kuti yaumi yacengaga panandipanandi, ŵasayansi ŵa mundaŵi ja Darwin soni ŵa mundaŵi jetu jino, apatile kuti yakulembedwa yakwamba yindu yakuwukulidwayi yili yakusawusya kuyikulupilila. Yeleyi yili m’yoyo ligongo lyakuti yangalosya kwajatyocele mitundu ja yaumi yine soni yikusalosya kucenga panandi kapena ngalosya kwene. Kaneko mitundujo jangawonekasoni mu yakulembedwayo.”32
Nambo kusala yisyene, yindu yakuwukulidwa yayawile kalakala yangalosya kuti mitundu ja yindu yaumi mkupita kwandaŵi jelewu yikusacenga. Soni ngayikusalosya kuti cindu cine cacenjile nikuŵa mtundu wine wasambano. Konjecesya pelepa, yakulembedwayo yikusalosya kuti cilu soni yiŵalo yakwe yikusapanganyidwa mwakusimonjesya. Mwambone, yiputiputi yana lunda lwakombola kulola soni kumanyilila yindu yayili pakutalicila, nambo pangali umboni uliwose wakulosya kuti yiputiputiyi yacenjile kutyocela ku ciputiputi candanda.
Nambosoni yikuwoneka kuti mitundu jine ja yinyama yekulungwakulungwa jagambile kusimanikwa kwandaŵi jamnono. Ŵasayansi ŵakuwungunya ya yindu yakuwukulidwa akusasala kuti yeleyi yatendekwe ligongo lyakuti mtundu wine wa yinyama wagambile kusimanikwa mwakusimonjesya kwandaŵi jamnono. Ndaŵi jeleji akusajikolangaga kuti “Cambrian explosion.” Ana jeleji jaliji ndaŵi jakwe japi?
Kwende tuwanicisye kuti yaŵapatile ŵakuwungunyaŵa yili yisyene. Mwambone, yakutendekwa ya cilambo capasi mpaka tuyilandanye ni msele waulewu mpela luŵala lwa mpila (1). Tuwanicisyesoni kuti akwenda kutyocela kugolo ja luŵalalo kwawula ku golo jine, nambo ali ciŵandika ni golo ja mbali jakwawulajo, malo gelego ni gakusagakolanga ŵasayansi kuti Cambrian explosion (2). Pali pamaloga nipakugawona makuga gekulungwakulungwa ga yinyama yakuwukulidwa yayawile kalakala. Ana yeleyi yikutendekwa mwacitema camtuli? Pakwendelecela kwenda pa luŵalalu, akuyiwona kuti yaumi yakulekanganalekangana yigamba kopoka mwitaka ndaŵi jimpepe.
Kopoka kwa yinyama yakulekanganalekangana kwa ndaŵi jimpepeku kukwatendekasya ŵasayansi ŵajinji kayicila cijiganyo cakala ca Darwin cakuti, yaumi yosope yatyocele kwa nangolo jumo. Mwambone, mu 2008, jwasayansi jwine lina lyakwe Stuart Newman, jwatagulile kusosekwa kwakola umboni wasambano wampaka ulosye cenene yakuti yaumi yagambile kusimanikwa mwangosi. Jwalakwe jwatite, “Tukusosekwa tulolesoni matala gaŵagakamulicisye masengo Darwin pakusaka kusala yayatendekwe kuti yaumi yicenje kutyocela ku yindu yine. Ngukulupilila kuti matala gelega gali gangasosekwa pangani ja cijiganyo ca kucenga kwa yaumi kwakukusatendekwa kwa ndaŵi jelewu.”33
UMBONI WAŴAPATILE ŴASAYANSI USIMANIKWE NI YAKUSAWUSYA
Ligongo cici m’mabuku gane kajambule ka yiwulili yeleyi kakusaŵa kakulekangana kakule kakwe?
Mwinani kumciji: mwayikuwonecela m’mabuku gane
Mwinani kumlyo: mwayikusosecela kuonecela
Nambi wuli pakwamba ya yindu yakuwukulidwa yayawile kalakala yakusakamulicisya masengo pakusaka kulosya kuti somba syacenjile nikuŵa mtundu wa mola, soni mola nikuŵa m’likuga lya yindu yakwaŵa, soni yakwaŵa nikuŵa yakonjesya? Ana kacenjeka kakusapeleka umboni usyesyene wakulosya yayatendekwe kuti yaumi yicenje? Kusala yisyene umboniwu usimanikwe ni yakusawusya yejinji panyuma pakuwuwungunya cenene.
Cakusawusya candanda cili cakuti, m’mabuku gejinji akusajambula mwakulemweceka yayikusatendekwa kuti yaumi yakwaŵa yicenje nikuŵa yakonjesya. Mmalo mwakwambula yakulandana msingu, akusajambula yaumi yine yekulungwa soni yine yamwana.
Cakusawusya caŵili nambosoni cekulungwa mnope cili cakuti, pangali umboni uliwose wakulosya kuti yaumi yili ya m’likuga limo. Ŵakuwungunya alinjile kuyindandalika m’makuga, nambo ayiweni kuti komboleka pakusapita yaka mamiliyoni kuti cindu cicenje nikuŵa cindu cacilendo. Pakusala ya ulewu wa ndaŵi wawaŵaga pasikati pa kucenga kwa yindu yakuwukulidwa yayawile kalakala, jwasayansi jwine lina lyakwe Henry Gee, jwaŵecete kuti, “Ulewu wa ndaŵi pa kucenga kwa yinduku ukusaŵa wekulungwa mnope mwamti yikusaŵa yakusawusya kusala mwakusimicisya kamulana kwakupali pasikati pa yaumi ya kalakala ni ya panopano.”34c
Pakusala ya yindu yakuwukulidwa yayawile kalakala yakutama m’mesi soni ya pa mkuli, Malcolm S. Gordon jwaŵecete kuti yakuwukulidwa yayawile kalakala yayisimanikwe yikusapeleka umboni panandi wakulosya kuti yaumi yatyocele kwa nangolo jumo. Jwalakwe jwatite, “Kombolekasoni kuti yaumi yakulekanganalekangana yayikusimanikwa apano ngayikusalosya kulandana mnope ni yaumi yayasimanikwaga kalakalako.” Jwajonjecesyesoni kuti, “Pangali litala lyakumanyililila yayikusatendekwa kuti mitunduji jicenje nikuŵa cindu cine, kapena mwacikusakulila, kapenasoni kamulana kulikose kwakupali pasikati pa yaumi yakala ni ya apanopano.”35d
ANA MAFILIMU GAKUSALOSYA YAMTULI?
Ngani jine jajakopwece m’magasini ja National Geographic mu 2004, jalandenye yindu yakuwukulidwa yayawile kalakala ni “filimu jakusala ya cijiganyo cakuti yaumi yacenjile kutyocela ku yindu yine. Mu filimuji yiwulili 999 mwa yiwulili 1,000 yasoŵile ku malo gakucapicisya.”36 Kwende tulole yakuyicisya ya cisyasyoci.
Naga “yiwulili 95” ya yindu yakuwukulidwa yayawile kalakala yikusalosya kuti yinyama yangacenga nikuŵa cindu cacilendo, nambi ligongo cici ŵasayansi akusandandalika “yiwulili 5” yakusigalayo pakusaka kulosya kuti yikusacenga?
Awanicisye kuti asimene filimu jajikwete yiwulili 100, nambo filimuji pajapanganyidwaga jakwete yiwulili 100,000. Ana mpaka aŵecete yamtuli pakwamba yayiwuliliyi? Komboleka kuti mpaka akayicile panandi. Nambi wuli naga yiwulili 5 pa 100 yila ni yayikupeleka umboni wakulosya kuti fidiyoji jaliji jisyesyene, nambo yiwulili 95 yikusala ngani jine jakulekangana ni yeleyi. Ana mpaka luŵe lunda kusala kuti nganisyo syawo pakwamba ya filimuji sili sisyesyene ligongo lya yiwulili 5 yayiweni kuti yambone yila? Ana mpaka ayisunje yiwulili 5 mu ndandanda pakuyiwona kuti yikupeleka umboni wakwanila pa yakusakulupililaga wawojo? Ana nganiluŵa lunda kunda yiwulili 95 yila kuti yakamucisye kucenga mwakuganicisyamo?
Ana cisyasyo celeci cikulandana mwamtuli ni mwakusayiwonela ŵasayansi pangani ja yindu yakuwukulidwa yayawile kalakala? Kwa yaka yejinji, ŵakuwungunya nganamanyililaga kuti yindu yakuwukulidwa yayawile kalakala, yayili yiwulili 95 ya filimu jila, yalosyaga kuti mkupita kwa ndaŵi jelewu yaumi yikusacenga panandi mnope. Ligongo cici umboni wakusosekwa mnope mpela welewu ŵangawukamulicisya masengo? Jwakulemba mabuku jwine, lina lyakwe Richard Morris, jwaŵecete kuti, “Yikuwoneka kuti ŵasayansi ŵajigalile nganisyo syakuti yaumi yacengaga mwapanandipanandi soni ŵayikulupililaga mnope. Jemanjanji ŵatesile yeleyi atamose kuti ŵapatile maumboni gakulekangana ni yakusakulupililayo. Jemanjaji ŵacenjile muŵapikanilaga pakwamba ya yindu yakuwukulidwa yayawile kalakala pakusaka kwiticisya nganisyo syakuti yaumi yacenjile kutyocela ku yindu yine.”37
Buku jine ja Henry Gee jikusasala kuti, “Songa jakuti yindu yakuwukulidwa yayawile kalakala yikusapeleka umboni wakuti yaumi yacenjile kutyocela ku yindu yine yakusasala ŵasayansi, yikwamba kulandana ni mundu jwakusagamila, mwamti yikusaŵa yakusekasya.”—In Search of Deep Time—Beyond the Fossil Record to a New History of Life, by Henry Gee, pp. 116-117
Ana ŵasayansi ŵa masiku agano akuŵeceta yamtuli? Ana kapena nombe nawo cajendelecele kuŵika yindu yakuwukulidwa yayawile kalakala mu ndandanda pakusaka kuti yipelece umboni wakusaka jemanjajo? Ana kapena catende yeleyi pakusaka kamulana ni nganisyo syasambano syasikundile ŵasayansi?e
Ana akuganisya wuli? Ana umboni wapi wawukukamulana ni yakuwungunya? Aganicisye yiwundo yosope yatutagulilene m’kabuku akano.
Selo jandanda jakwete yakutendekwa yejinji.
Yakuti selo japanganyidwe mwangosi yili yakayikasya.
DNA jajikusapeleka umanyilisi ku selo jajapanganyidwe mwakusimonjesya, jikusapeleka umboni wakuti pana mundu jwine jwalunda juŵajipanganyisye soni jili jakulekangana ni cakusunjila utenga cilicose campaka apanganye mundu.
Ŵakuwungunya ŵane alosisye kuti umi nganiwutyocela kwa nangolo jumo. Konjecesya pelepa, makuga gekulungwakulungwa ga yinyama gawonecele mwakusimonjesya mu yakuwukulidwa yayawile kalakala.
Panyuma pakuganicisya yiwundo yeleyi, ana akuganisya kuti pana umboni wuliwose wakupikanika wampaka ukamulane ni yajikusasala Baibulo yakuti yaumi yatesile kupanganyidwa? Ŵandu ŵajinji, akusasala mwakusimicisya kuti sayansi jikusasisyana mnope ni yajikusasala Baibulo pakwamba ya yindu yakupanganyidwa. Ana yeleyi yili yisyene? Ana Baibulo jikusasala yamtuli?
a Maloŵe ga sayansi gakuti phyla (Phylum, kwimila cindu cimo) gakusasala ya makuga ga yinyama yekulungwakulungwa yakulandana cilu. Litala limo lyakusakamulicisya masengo ŵasayansi pakusaka kuyilandanya kapena kuyilekanganya yaumi, lili kuyigaŵa m’makuga gakwana 7. Likuga lyandanda akusalikolanga kuti Kingdom, lyalili likuga lyekulungwa mnope. Kaneko pakusayika makuga gane gagali, phylum, class, order, family, genus, soni species. Kwende tuwanicisye ni haci. Haci akusajiŵika m’makuga aga: kingdom, Animalia; phylum, Chordata; class, Mammalia; order, Perissodactyla; family, Equidae; genus, Equus; species, Caballus.
b Amanyilile kuti ngani ja m’magasini ja New Scientist, soni maloŵe ga Bapteste ni Rose ngayikugopolela kuti jemanjaji akusasisya songa jakuti yaumi yatesile kucenga kutyocela ku yindu yine. Nambo songa jawo jaliji jakuti yaŵasasile Darwin kuti yaumi yosope yatyocele kwa nangolo jumo yili yangali maumboni. Nambo ŵasayansiŵa akwendelecelape kupata matala gane gakusimicisya kuti yaumi yatesile kucenga kutyocela ku yindu yine.
c Ngaŵa kuti Henry Gee jwasisyaga cijiganyo cakuti yaumi yacenjile kutyocela ku yindu yine. Nambo jwalakwe jwasakaga kulosya kuti nganituŵa tukombwele kulijiganya yosope yakwayana ni yindu yakuwukulidwa yayawile kalakala.
d Malcolm S. Gordon akusalimbikasya cijiganyo cakuti yaumi yacenjile kutyocela ku yindu yine.
e Mwambone, alole libokosi lyakuti “Ana Yisyene Kuti Ŵandu Ŵatyocele ku Cindu Cine?”
f Amanyilile ayi: Ŵakuwungunya wosope ŵatwakolasile m’kabokosi akano ngakusakulupilila yajikusasala Baibulo pa ngani ja yakupanganya. Wosope akusakulupilila cijiganyo cakuti yaumi yatesile kucenga kutyocela ku yindu yine.