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South American rattlesnake multfilm rasmi
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South American rattlesnake

Crotalus durissus
Oʻldirishi mumkinDavolanmasa, seni oʻldirishi mumkin. Agar seni chaqsa, tezda yordam ol.
Shaqildoq ilonlar ChaqadiOvqati: Goʻsht
Odamlar uchun xavf: Juda xavfliDavolanmagan odamni oʻldirishi mumkin.

The South American rattlesnake is a large, highly venomous pit viper. It lives across much of South America, except the Andes Mountains, and also on some Caribbean islands. It is the most widely spread member of its genus, which is why it matters to people in so many places.1

Yashash joyi
South America except the Andes, including Colombia, Venezuela, Brazil, Argentina and Paraguay; also some Caribbean islands, including Aruba1
Janubiy Amerika
Bosh sahifa
It prefers savanna and semi-arid areas, and is found in several types of scrub and seasonal forest. In the Chaco region of Paraguay, it lives in the drier, sandier areas.1
Uzunlik
1,9 m (6,2 ft)1
Eng yuqori tezlik
taxminan 4 km/soat (2,5 mil/soat)
Quruqlikda, taxminiy
Nima yeydi?
It eats mainly rodents, which are abundant and available all year in most of its range. In some regions it also eats lizards of the Teiidae family.1
Rostdan!South American rattlesnake surati
South American rattlesnake. Surat: Leandro Avelar. CC BY-SA 4.0, Wikimedia Commons.

Uni qanday tanish mumkin

  • Two distinct stripes start at the base of the head, and the colour between the lines is lighter than the stripes.1
  • Body colour and pattern vary, but most have 18 to 32 dark diamond or rhombic spots along the back.1
  • The head has a dark brown bar at the top and a dark band behind the eye.1
  • The tail is usually grey, with dark, faint crossed bands.1
  • The belly is white or yellowish with light grey spots, getting darker towards the tail.1

Zahar quvvati

Chaqadi

Chaqqanda zahar zaharli tishlari yoki tishlari orqali chiqadi.

Uning zahari (chaqsa yoki nish ursa) nima qiladi?

Its venom contains neurotoxins, which attack the nerves, and myotoxins, which damage muscle. These cause progressive paralysis, including impaired or lost vision, hearing problems, drooping eyelids and weakness in the neck muscles, which can become so limp that the head appears broken. Breathing can eventually be stopped by paralysis, and the muscle damage can cause dark urine.1

Odamlar uchun qanchalik xavfli?

Odamlar uchun xavf: Juda xavfliDavolanmagan odamni oʻldirishi mumkin.

It is a highly venomous snake. The mortality rate is 72% for bite cases without specific serum treatment, and 11% for cases with it. Acute kidney failure is considered the main cause of death.1

Yaxshi xabar: shifokorlarda buning uchun dori (zaharga qarshi zardob) yoki davolash usuli bor.1

Qoʻrqqanda nima qiladi?

It is highly alert and gives little warning before it strikes, but it is seldom aggressive towards people.1

Agar chaqsa

  • Specific serum treatment (antivenom) greatly lowers the death rate, so a bite needs urgent hospital care to give it.1
  • Odamni qimirlamay va xotirjam tut, chaqilgan qoʻl yoki oyoqni yurak balandligida ushla, uzuk va siquvchi narsalarni yechib ol va tezda kasalxonaga olib bor.

Har doim avval favqulodda yordam raqamiga qoʻngʻiroq qil (112, 000, 911). Bu birinchi yordam boʻyicha umumiy maslahat, tibbiy maslahat emas. Birinchi yordam asoslari

Xavfsiz boʻl

  • Hech qachon yovvoyi hayvonga tegma, uni tutma yoki jigʻiga tegma, hatto kichkina boʻlsa ham va hatto uxlayotgan yoki oʻlik koʻrinsa ham.
  • Unga joy ber. Agar duch kelsang, xotirjam boʻl, sekin orqaga chekin va uni oʻz yoʻliga ketishiga qoʻy.
  • Agar biri seni chaqsa: xotirjam boʻl, qimirlamay tur, favqulodda yordam raqamiga qoʻngʻiroq qil (112, 000, 911) yoki tezda kasalxonaga yet. U qanday koʻrinishda ekanini eslab qol, surat yordam beradi.

U seni ovlamoqchi emas. Zaharini ovqat tutish yoki oʻzini himoya qilish uchun ishlatadi va yashirinishni ancha afzal koʻradi. Xavfsiz qolish haqida batafsil

Dunyoning qayerida?

AfrikaOsiyoYevropaShimoliy AmerikaJanubiy AmerikaAvstraliya va Okeaniya

U qanchalik katta?

U qanchalik uzun?

South American rattlesnake taxminan 1,9 m uzunlikda (6,2 ft)Kattalar velosipedi taxminan 1,8 m (5,9 ft)Mashina taxminan 4,5 m (15 ft)
burnidan dumigacha tizilgan 4 ta uy mushugidek uzunketma-ket qoʻyilgan 11 ta banandek uzun100 metrni 90 soniyada bosib oʻtishi mumkin (eng tez odamga 9,6 soniya kerak)

South American rattlesnake SEN bilan solishtirganda qanchalik katta?

Faqat brauzeringdagi hisob-kitob. Hech narsa saqlanmaydi va hech qayerga yuborilmaydi.

U qanchalik tez?

bilish foydali

Faktlar

1

The lethal dose for a 60 kg human is possibly 18 mg, while a snake's venom yield is 20 to 100 mg.1

2

Crotoxin, a neurotoxin, makes up about 48.5% to 89.4% of the venom proteins in one subspecies, though it is typically 60% to 70%.1

3

It is the most widely distributed member of its genus, and seven subspecies are currently recognised.1

4

It is more active at dusk and in the early hours of the morning.1

5

Males compete for access to females from the end of summer, with mating in autumn and the young born the following spring or summer.1

Afsonalarni fosh qiluvchi

Afsona: Yellow venom means the bite damages blood and tissue, and white venom means it attacks the nerves.

Haqiqat: Venom colour does not determine the type. Colour depends on pigments in the venom, not on whether it is haemorrhagic or neurotoxic.1

Zahar mutaxassislari uchun

Ilmiy nomi
Crotalus durissus
Guruh
Shaqildoq ilonlar
Oila
Viperidae2
Tartib
Squamata
Qitʼalar
Janubiy Amerika
Chaqaloqlar
It gives birth to live young (ovoviviparous), usually four to eight at a time. In Roraima, Brazil, gestation has been reported to last five months, with up to 14 young.1
Odamlar uchun xavf
4 / 5: Juda xavfli3

Faktlar qayerdan olingan

  1. Crotalus durissus (Wikipedia (CC BY-SA 4.0))
  2. Crotalus durissus (iNaturalist): nomlar va tasnif.
  3. Venom Wiki: xavf darajasi, odatiy oʻlcham va taxminiy tezlik bizning oʻz baholarimiz. Ularni qanday hisoblashimizni koʻr: Xavfni qanday baholaymiz.

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