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Sawir kartoon ah oo Darwin's bark spider
Lambar 0714 ee 1 402

Darwin's bark spider

Caerostris darwini
Ku saabsan magaca: It was named in honour of the naturalist Charles Darwin, on 24 November 2009, exactly 150 years after The Origin of Species was published.1
Waxyeello ma lehDadka waxyeello uma leh. Wax laga walwalo ma jiro.
Caarooyin QaniinWuxuu cunaa: Cayayaan
Khatarta dadka: FududSida mudidda shinnida ama ka yar. Dadka waxyeello uma leh.

Darwin's bark spider is an orb-weaver that builds the largest orb webs ever seen. It lives in the forests of Madagascar, where it hangs its web over rivers and lakes. Scientists found it in 2009, and it has unusually tough silk.1

Wuxuu ku nool yahay
Madagascar, found in Andasibe-Mantadia National Park1
Afrika
Bogga hore
Builds its web directly above rivers or the water of lakes, a habitat no other spider is known to use. Its webs are large enough to be noticed from a distance.1
Dherer
2.2 cm (0.9 in)1
Xawaaraha ugu sarreeya
qiyaastii 1.1 km/saac (0.68 mayl/saac)
Dhulka, qiyaas qallafsan
Muxuu cunaa?
Catches insects, including mayflies, that fly over the water and become caught in its web. One web has been seen holding up to 32 mayflies at a time.1
Run ahaan!Sawirka Darwin's bark spider
Darwin's bark spider. Sawir: Matjazgregoric. CC BY-SA 4.0, iNaturalist.

Sida loo aqoonsado

  • Females are largely black, with white hairs on the body and legs.1
  • The top of the front body section has two pairs of raised humps, one at the sides and one towards the back.1
  • Females are about 1.8 to 2.2 cm long, while males are around 0.6 cm.1
  • Males are redder and lighter brown, with white hairs and red, hairless leg segments (femora).1
  • Webs are very large, up to 2.8 square metres, and are strung over water.1

Inta badan lagu khaldaa: Other Caerostris species live in the same region of Madagascar. Darwin's bark spider has clearly separated epigynal chambers (parts of the female's genital plate) with a pair of hooks at the back, which the other species from the region do not have.1

Awoodda sunta

Qaniin

Suntu waxay ka soo baxdaa ilkihiisa sunta ama ilkihiisa marka uu qaniino.

Intee buu dadka khatar ugu yahay?

Khatarta dadka: FududSida mudidda shinnida ama ka yar. Dadka waxyeello uma leh.

Haddii uu qaniino

  • Dhaq meesha la qaniinay oo saar kiish baraf ah xanuunka dartiis. Hel caawimaad caafimaad haddii xanuunku xoog badan yahay, faafo ama qofku dareemo inuu xanuunsan yahay.

Marka hore had iyo jeer wac lambarka gurmadka degdegga ah (112, 000, 911). Kani waa hage guud oo gargaar degdeg ah, ma aha talo caafimaad. Aasaaska gargaarka degdegga ah

Badbaado

  • Weligaa ha taaban, ha qaban, hana ku ciyaarin xayawaan duurjoog ah, xitaa mid yar, xitaa haddii uu u muuqdo inuu hurdo ama dhintay.
  • Meel u bannee. Haddii aad mid la kulanto, deg, tartiib dib ugu noqo oo u daa inuu jidkiisa maro.
  • Haddii mid ku qaniino: deg, ha dhaqaaqin, wac lambarka gurmadka degdegga ah (112, 000, 911) ama si degdeg ah u tag isbitaalka. Xusuuso sida uu u egyahay, sawir ayaa caawiya.

Kuma raadinayo. Suntiisa wuxuu u isticmaalaa inuu cunto ku qabsado ama isku difaaco, wuxuuna aad u door bidaa inuu dhuunto. Wax badan oo ku saabsan badbaadada

Adduunka xaggee?

AfrikaAasiyaYurubWaqooyiga AmeerikaKoonfurta AmeerikaAwstaraaliya iyo Oceania

Intee buu le'eg yahay?

Intee buu dherer le'eg yahay?

Darwin's bark spider qiyaastii 2.2 cm dherer (0.9 in)Xabbad bariis ah qiyaastii 7 mm (0.3 in)Qadaadiic 1 yuuro ah qiyaastii 2.3 cm (0.9 in)
qiyaastii dhererka biin warqad100 mitir wuxuu ku gooyn karaa 330 ilbiriqsi (qofka ugu dheereeya wuxuu u baahan yahay 9.6)

Intee buu Darwin's bark spider le'eg yahay marka ADIGA laguu barbar dhigo?

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Intee buu u dheereeyaa?

waa wanaagsan tahay in la ogaado

Xaqiiqooyin

1

Its silk is the toughest biological material ever studied. It is over ten times tougher than a similar amount of Kevlar.1

2

Its web is the largest orb web ever observed, covering up to 2.8 square metres. Its bridge lines can span up to 25 metres.1

3

The spider uses a set of web-building behaviours that are unknown in other spiders. It releases bridge silk into the air so the wind carries it across the water.1

4

Females are much larger than males, sometimes many times heavier. This is one of the most extreme size differences between the sexes in spiders.1

5

Flies that feed on its catches have been found living alongside it, and the spider sometimes chases them away.1

Khubarada sunta

Magaca sayniska
Caerostris darwini
Koox
Caarooyin
Qoys
Araneidae2
Kala horreynta
Araneae
Qaaradaha
Afrika
Khatarta dadka
1 / 5: Fudud3

Meesha xaqiiqooyinku ka yimaadaan

  1. Darwin's bark spider (Wikipedia (CC BY-SA 4.0))
  2. Caerostris darwini (iNaturalist): magacyada iyo kala soocidda.
  3. Venom Wiki: heerka khatarta, cabbirka caadiga ah iyo qiyaasta xawaaraha annaga ayaa sameeyay. Eeg sida aan u xisaabinno: Sida aan u qiimeyno khatarta.

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