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Mutsanga unenge uine makumbo mangani, kana Sei usina kufanana nemhuka?
Vazhinji vekare vea arachnid vanorarama pasi pano ndevanyengeri. Mamiriyoni emakore apfuura, uye haana kuchinja zvakawanda. Kusvika panguva ino, sayenzi inoziva zvinopfuura 700 zvezvisikwa zvavo.
Zvinoratidzika sei?
Icho chimiro chekunze chegandanisi chinoparadzanisa zvachose kubva kuzvipembenene. Kana muviri wavo wakajeka uine zvikamu zvitatu: musoro, thoracic uye mimba, ipapo arachnids yezvikamu izvi zvine maviri chete: cephalothorax, yakagadzirwa nekukanganiswa kwemusoro nechifukidzo uye inosanganisira chitin yakasimba, uye mudumbu rakadzikama. Kune maziso masere pane cephalothorax! Usashamiswa, asi kazhinji huwandu huwandu hwemaziso eespider is matanhatu, huwandu huri gumi nemaviri.
Tsangurusi ine makumbo mangani?
Vakawanda vedu isu hatigoni kupindura zvakakwana mubvunzo wekuti makumbo mangani ane tsandanyama uye pamwe anofunga kuti kune zvitanhatu, sezvipembenene zvose. Asi ikoko kwaiva! Uyu ndiwo mutsauko mukuru - kuvapo kwemakumbo masere, asi zvipembenene, chaizvoizvo, zvitatu zviviri zvemakumbo. Mhando yemakumbo emakumbo ekutanga ndiyo chelicera. Idzi idzi dzine mitsipa yepamusoro ine uchetura, iyo inoshanda kuti inzwisise uye inopwanya zvokudya. Zvadaro kuuya zvitatu zviviri zvemakumbo zvinotarisirwa kufamba.
Mukati sarudzo yei spider
Icho chirwere chetsitsi chinotungamirirwa neuropi chiri mune cephalothorax. Ikoko girapiti uye mwoyo uri mudenga rekumusoro kwechidziro chiri mudumbu (tsvuku mumufananidzo). Mwoyo kurohwa kazhinji ndeyekuita 30-70 kurova paminiti, asi kana chipangara chiri kunetseka kana kuneta nokuda kwechikonzero chipi nechipi, saka izvi zvinowedzera ku ... 200 kurova paminiti! Pakuguma kwemuviri ndizvo zvinonzi nhengo dzekunyorera. Dzinobereka silika uye dzinobatanidzwa nemagenzura anobudisa mapuroteni akasiyana-siyana. Somugumisiro wekusanganisa uye kuparadzanisa mapuroteni, silika yakapfava inobudiswa, ichipfuura kuburikidza nhengo dzakasiyana-siyana dzinoshandura uye kuchinja kuva tsvina. Heino izvo - cobwebs!
Tsanga dzinopararira pasi pose - kubva kuAntarctica uye makomo kusvika kumakungwa makuru nemapako. Vakawanda vavo vanorarama panyika, uye vamwe-mumakungwa, mune zvitsva uye mumvura pasi pevhu.
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