Nyob rau hauv Latin America nyob ib tug tshwj xeeb kab laug sab Bagheera Kipling. Qhov no yog kab laug sab dhia, nws, zoo li tag nrho cov pab pawg, muaj lub qhov muag loj thiab muaj peev xwm dhia tau zoo heev. Tab sis nws kuj muaj qhov zoo uas ua rau nws sawv tawm ntawm 40000 hom kab laug sab - nws yuav luag yog neeg tsis noj nqaij.
Yuav luag tag nrho cov kab laug sab yog predators. Lawv tuaj yeem tua tsiaj siv ntau txoj hauv kev, tab sis thaum kawg lawv txhua tus nqus cov kua dej hauv nruab nrog cev ntawm tus neeg raug tsim txom. Yog tias lawv haus cov nroj tsuag, nws tsis tshua muaj, yuav luag raug mob. Qee tus yuav haus dej qab zib ib ntus los ntxiv lawv cov nqaij noj. Lwm tus neeg yuam kev noj cov paj ntoos thaum rov ua dua lawv cov webs.
Tab sis Kipling's Bagheera yog ib qho kev zam. Christopher Meehan ntawm Villanova University pom tias kab laug sab siv kev sib koom tes ntawm ntsaum thiab acacia. Cov ntoo Acacia siv cov ntsaum ua cov tiv thaiv thiab muab lawv cov vaj tse nyob hauv cov pos hauv qhov khoob thiab cov kab noj qab nyob zoo ntawm lawv cov nplooj hu ua Belt corpuscles. Kipling's baghears tau kawm nyiag cov khoom noj khoom haus no los ntawm ntsaum, thiab vim li ntawd, tau dhau los ua tib (yuav luag) cov kab laug sab neeg tsis noj nqaij.
Mian siv xya xyoo saib kab laug sab thiab lawv tau txais zaub mov li cas. Nws tau qhia tias kab laug sab tuaj yeem pom nyob rau ntawm acacia uas cov ntsaum nyob, vim tias Belt corpuscles loj hlob ntawm acacia tsuas yog nyob rau hauv lub xub ntiag ntawm ntsaum.
Hauv Mexico, Belt lub cev muaj li 91% ntawm kab laug sab noj, thiab hauv Costa Rica, 60%. Tsawg zaus lawv haus dej qab zib, thiab tsis tshua muaj lawv noj nqaij, noj ants larvae, yoov, thiab txawm cov tswv cuab ntawm lawv tus kheej hom.
Meehan tau lees paub nws cov txiaj ntsig los ntawm kev tshuaj xyuas cov tshuaj muaj pes tsawg leeg ntawm kab laug sab lub cev. Nws saib ntawm qhov piv ntawm ob isotopes ntawm nitrogen: N-15 thiab N-14. Cov neeg uas noj cov zaub mov cog muaj cov qib N-15 qis dua li cov neeg noj nqaij, thiab Bagheera Kipling lub cev muaj 5% tsawg dua ntawm cov isotope dua lwm cov kab laug sab dhia. Meehan kuj tau piv cov qib ntawm ob cov pa roj carbon isotopes, C-13 thiab C-12. Nws pom tias nyob rau hauv lub cev ntawm ib tug neeg tsis noj nqaij kab laug sab thiab nyob rau hauv Belt lub cev, muaj yuav luag tib yam piv, uas yog ib txwm rau cov tsiaj thiab lawv cov zaub mov.
Kev noj cov menyuam nyuj yog qhov muaj txiaj ntsig, tab sis tsis yooj yim li. Ua ntej, muaj teeb meem ntawm cov ntsaum thaiv. Bagheera Kipling lub tswv yim yog stealth thiab maneuverability. Nws tsim zes ntawm cov lus qhia ntawm cov nplooj qub, qhov twg ants tsis tshua mus. Kab laug sab nquag nkaum los ntawm kev mus txog patrols. Yog hais tias cornered, lawv siv lawv cov paws muaj zog ua kom dhia ntev. Qee zaum lawv siv lub vev xaib, dai saum huab cua kom txog thaum muaj kev phom sij dhau lawm. Meehan tau sau ntau lub tswv yim, tag nrho cov no yog cov pov thawj ntawm kev txawj ntse uas dhia kab laug sab nto moo.
Txawm hais tias Kipling's Bagheera tswj kom khiav tawm ntawm kev saib xyuas, tseem muaj teeb meem. Siv lub cev yog nplua nuj nyob rau hauv fiber ntau, thiab kab laug sab, nyob rau hauv txoj kev xav, yuav tsum tsis txhob muaj peev xwm tiv nrog nws. Kab laug sab tsis tuaj yeem zom zaub mov, lawv zom lawv cov neeg raug tsim txom los ntawm kev siv tshuaj lom thiab kua txiv hmab txiv ntoo, thiab tom qab ntawd "haus" cov kua qaub. Cov nroj tsuag fiber ntau nyuaj dua, thiab peb tseem tsis paub tias Kipling's Bagheera ua li cas.
Feem ntau, nws tsim nyog. Siv corpuscles yog ib qho chaw npaj khoom noj muaj nyob rau txhua xyoo puag ncig. Siv lwm tus neeg cov zaub mov, Kipling's Bagheeras tau vam meej. Niaj hnub no lawv tuaj yeem pom nyob txhua qhov chaw hauv Latin America, qhov chaw ntsaum "kev koom tes" nrog acacias.