Vim li cas ho muaj cov txiv neej?

Vim li cas lub neej ntawm cov txiv neej tau ntev troubled lub siab ntawm cov kws tshawb fawb. Kev sib deev luam tawm yog kev sib txig sib luag thiab kim, tab sis feem ntau hom kab mob sib txawv los xaiv hom kev no kom khaws tau lawv cov noob. Qhov no yog qhov tsis zoo. Li ntawd, vim li cas thiaj muaj cov txiv neej? Cov kws tshawb fawb los ntawm University of East Anglia ntseeg tias, kab tias, cov cai no yog qhov kawg thaum tawg. Lawv hais tias qhov kev hloov ntawm lub cev, hu ua kev xaiv kev sib deev, plays lub luag haujlwm tseem ceeb hauv kev txhim kho kev noj qab haus huv ntawm cov pejxeem thiab tiv thaiv hom kab los ntawm kev puas tsuaj.

Kev tshawb nrhiav tshiab

Nyob rau hauv kev tshawb luam tawm nyob rau hauv phau ntawv Journal, ib subspecies ntawm Tribolium beetles raug xaiv rau kev soj ntsuam kom to taub yog vim li cas feem ntau cov kab mob multicellular nyiam hom kev sib deev ntawm hom kev xav. Nyob rau hauv kev tswj cov kev mob, cov neeg tshawb xyuas tau tshawb txog 50 cov kab ntawm cov kab li kaum xyoo thiab muaj kev cuam tshuam cov kev sib deev xaiv. Raws li txoj kev xav ntawm Charles Darwin, kev sib deev xaiv yog tus txheej txheem uas cov txiv neej sib tw rau lub sijhawm rau yug, thiab pojniam xaiv cov neeg uas lawv npaj rau yug.

Kev xam pom ntawm qhov tseeb

"Yuav luag tag nrho cov tsiaj muaj ntau hom nyob rau hauv lub ntiaj teb reproduce los ntawm kev sib deev, tab sis nws lub neej tsis yooj yim li piav, vim hais tias hom no coj mus rau hauv loads hnyav thiab yuav tsum tau siv tseem ceeb zog ntawm lub zog." Tsis tas li ntawd, nws yog pom tseeb tias tsuas yog ib nrab ntawm koj cov xeeb ntxwv-cov ntxhais Qhov tseeb, muaj cov xeeb ntxwv. "Vim li cas hom tsiaj siv lawv lub sijhawm thiab lub zog rau lawv cov tub thiab?" "Hais tias tus kws tshawb fawb, tus xibfwb Matt Gage ntawm UEA School, nyob rau hauv ib daim ntawv qhia.

Txoj hauj lwm ntawm txoj kev tshawb no

"Peb xav kom nkag siab tias Darwinian txoj kev cai xaiv qhov kev tshwm sim no yuav ua rau ntau qhov chaw, thiab yog vim li cas qhov kev tsim kho me nyuam yaus thiaj li khib nyiab, vim hais tias txhua tus neeg ua kom tsis muaj poj niam txiv neej, xws li nyob hauv txhua tus neeg laus laus, zoo dua," notes Hauv txoj kev tshawb nrhiav.

Cov qhab nees ntawm kev sim

Cov kws tshawb fawb tau pom tias thaum kev sib tw raug muab tshem tawm, thiab cov kab no tseem nyob hauv cov khub ua haujlwm, kev noj qab haus huv ntawm cov pejxeem tsis zoo. Sib piv, cov me nyuam tau txais nyob rau hauv cov kev mob ntawm kev sib tw khaus, thaum muaj 10 pojniam rau 90 tus txiv neej, yog tus kab mob ntau dua rau tus kab mob thiab kev tuag.

"Yuav tsum yog qhov zoo tshaj plaws ntawm cov sib tw sib tw thiab nyiam cov neeg koom tes, ib tug neeg yuav tsum ua zoo rau ntau yam, yog li xaiv qhov kev sib deev yog qhov tseem ceeb thiab zoo rau kev tswj hwm thiab kev txhim kho kev noj qab haus huv ntawm cov pejxeem," Gage hais. Qhov tseeb tias kev pw ua ke tseem nyob ua ib ke ua hom hom kev luam, vim hais tias nws tso cai rau kev sib deev xaiv los muab cov kev pabcuam tseem ceeb no. "

Txoj kev tshawb no qhia tau hais tias qhov kev tshwm sim xws li kev xaiv kev sib daj sib deev plays lub luag hauj lwm tseem ceeb hauv kev ntsuam xyuas cov teeb meem tshuaj ntsuam genetic mutations, vim tias kev sib tw txhais tau tias tsawg dua tus poj niam rau phooj ywg nrog ib tug txiv neej uas tsis ua haujlwm.