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Katuni yaDarwin's bark spider
Nhamba 0714 pa1 402

Darwin's bark spider

Caerostris darwini
Nezvezita: 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
Isina ngoziHaina ngozi kuvanhu. Hapana chekunetseka nacho.
Madandemutande InorumaInodya: Zvipukanana
Ngozi kuvanhu: Ngozi shomaSenyuchi kubaya kana kushoma. Kazhinji haina ngozi kuvanhu.

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

Inogara mu
Madagascar, found in Andasibe-Mantadia National Park1
Afrika
Kumba
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
Kureba
2,2 cm (0,9 in)1
Kumhanya kukuru
kunenge 1,1 km/h (0,68 mph)
Pasi pevhu, kufungidzira
Inodya chii?
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
Chaizvo!Mufananidzo waDarwin's bark spider
Darwin's bark spider. Mufananidzo: Matjazgregoric. CC BY-SA 4.0, iNaturalist.

Maziviro ayo

  • 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

Inowanzovhiringidzwa ne: 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

Simba reuturu

Inoruma

Uturu hunobuda nemeno ayo painoruma.

Ine ngozi yakadii kuvanhu?

Ngozi kuvanhu: Ngozi shomaSenyuchi kubaya kana kushoma. Kazhinji haina ngozi kuvanhu.

Kana ikaruma

  • Geza parumwa woisa pakiti yechando kuderedza marwadzo. Wana rubatsiro rwechiremba kana marwadzo akanyanya, achipararira kana munhu asinganzwi zvakanaka.

Gara uchitanga wafonera nhamba yechimbichimbi (112, 000, 911). Iri izano rakajairika rerubatsiro rwekutanga, kwete zano rechiremba. Zvakakosha zverubatsiro rwekutanga

Gara wakachengeteka

  • Usambobata mhuka yesango, kuedza kuitora kana kuinetsa, kunyange iri diki, uye kunyange ichiita seyakarara kana yakafa.
  • Ipa nzvimbo. Kana ukasangana nayo, dzikama, dzokera shure zvishoma nezvishoma uirege iende nenzira yayo.
  • Kana imwe ikakuruma: dzikama, gara wakanyarara, fonera nhamba yechimbichimbi (112, 000, 911) kana kuti enda kuchipatara nokukurumidza. Rangarira kuti yaitaridzika sei, mufananidzo unobatsira.

Haisi kukutsvaga. Inoshandisa uturu hwayo kubata chikafu kana kuzvidzivirira, uye inotonyanya kuda kuhwanda. Zvimwe pamusoro pekugara wakachengeteka

Kupi pasi rose?

AfrikaAsiaYuropuAmerika yeKuchamhembeAmerika yeKumaodzanyembaAustralia neOceania

Yakakura sei?

Yakareba zvakadii?

Darwin's bark spider kunenge 2,2 cm kureba (0,9 in)Tsanga yemupunga kunenge 7 mm (0,3 in)Mari yesimbi ye1 euro kunenge 2,3 cm (0,9 in)
inenge kureba sechibatanidzo chemapepainogona kumhanya mamita 100 mumasekondi 330 (munhu anomhanyisa kupfuura vose anoda 9.6)

Darwin's bark spider yakakura sei kana yaenzaniswa NEWE?

Masvomhu chete mubrowser yako. Hapana chinochengetwa kana kutumirwa kupi zvako.

Inomhanya zvakadii?

zvakanaka kuziva

Chokwadi

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

Kune nyanzvi dzeuturu

Zita resainzi
Caerostris darwini
Boka
Madandemutande
Mhuri
Araneidae2
Odha
Araneae
Makondinendi
Afrika
Ngozi kuvanhu
1 / 5: Ngozi shoma3

Kwakabva chokwadi

  1. Darwin's bark spider (Wikipedia (CC BY-SA 4.0))
  2. Caerostris darwini (iNaturalist): mazita nekurongwa kwemhuka.
  3. Venom Wiki: danho rengozi, saizi yakajairika nekufungidzira kwekumhanya ndezvedu. Ona kuti tinozviwana sei: Matinoyera ngozi.

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