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Cartoon ng South American rattlesnake
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South American rattlesnake

Crotalus durissus
Puwedeng pumatayPuwede kang mapatay nito kapag walang gamutan. Kung kagatin ka nito, humingi agad ng tulong.
Mga rattlesnake Mga kagatKinakain: Karne
Panganib sa tao: NapakapanganibKaya nitong pumatay ng taong hindi nagamot.

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

Nakatira sa
South America except the Andes, including Colombia, Venezuela, Brazil, Argentina and Paraguay; also some Caribbean islands, including Aruba1
Timog Amerika
Home
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
Haba
1.9 m (6.2 ft)1
Pinakamataas na bilis
mga 4 km/h (2.5 mph)
Sa lupa, tantiya lang
Ano ang kinakain nito?
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
Totoo!Litrato ng South American rattlesnake
South American rattlesnake. Litrato: Leandro Avelar. CC BY-SA 4.0, Wikimedia Commons.

Paano ito makikilala

  • 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

Lakas ng kamandag

Mga kagat

Lumalabas ang kamandag sa pangil o ngipin nito kapag nangangagat ito.

Ano ang epekto ng kamandag nito?

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

Gaano ito kapanganib sa tao?

Panganib sa tao: NapakapanganibKaya nitong pumatay ng taong hindi nagamot.

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

Magandang balita: may gamot (antivenom) o gamutan ang mga doktor para dito.1

Ano ang ginagawa nito kapag natatakot?

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

Kung kumagat ito

  • Specific serum treatment (antivenom) greatly lowers the death rate, so a bite needs urgent hospital care to give it.1
  • Panatilihing hindi gumagalaw at kalmado ang tao, panatilihin ang nakagat na braso o binti sa antas ng puso, tanggalin ang mga singsing at masisikip na bagay, at pumunta agad sa ospital.

Laging tawagan muna ang numero pang-emergency (112, 000, 911). Ito ay pangkalahatang gabay sa pangunang lunas, hindi payong medikal. Mga batayan ng pangunang lunas

Mag-ingat

  • Huwag kailanman hawakan, hulihin o asarin ang ligaw na hayop, kahit maliit, at kahit mukha itong tulog o patay.
  • Bigyan ito ng espasyo. Kung makasalubong ka ng isa, manatiling kalmado, dahan-dahang umatras at hayaan itong umalis.
  • Kung kagatin ka ng isa: manatiling kalmado, huwag gumalaw, tawagan ang numero pang-emergency (112, 000, 911) o pumunta agad sa ospital. Tandaan ang itsura nito, makakatulong ang litrato.

Hindi ka nito hinahabol. Ginagamit nito ang kamandag para manghuli ng pagkain o ipagtanggol ang sarili, at mas gusto pa nitong magtago. Higit pa tungkol sa pag-iingat

Saan sa mundo?

AprikaAsyaEuropaHilagang AmerikaTimog AmerikaAustralia at Oceania

Gaano ito kalaki?

Gaano ito kahaba?

South American rattlesnake mga 1.9 m ang haba (6.2 ft)Bisikleta ng matanda mga 1.8 m (5.9 ft)Isang kotse mga 4.5 m (15 ft)
kasinghaba ng 4 pusang bahay mula ilong hanggang buntotkasinghaba ng 11 saging na magkakadugtongkayang tapusin ang 100 metro sa loob ng 90 segundo (9.6 ang kailangan ng pinakamabilis na tao)

Gaano kalaki si South American rattlesnake kumpara sa IYO?

Math lang sa browser mo. Walang sine-save o ipinapadala kahit saan.

Gaano ito kabilis?

magandang malaman

Mga fact

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

Myth buster

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

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

Para sa mga eksperto sa kamandag

Pangalang siyentipiko
Crotalus durissus
Grupo
Mga rattlesnake
Pamilya
Viperidae2
Ayos
Squamata
Mga kontinente
Timog Amerika
Mga sanggol
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
Panganib sa tao
4 / 5: Napakapanganib3

Saan galing ang mga fact

  1. Crotalus durissus (Wikipedia (CC BY-SA 4.0))
  2. Crotalus durissus (iNaturalist): mga pangalan at klasipikasyon.
  3. Venom Wiki: sarili naming tantiya ang antas ng panganib, karaniwang laki at hula sa bilis. Tingnan kung paano namin ito kinukuwenta: Paano namin sinusukat ang panganib.

Bawat fact sa pahinang ito ay may numerong tumuturo sa pinagmulan nito. Kung may mali kami, pasensya na, mahilig lang kami sa hayop, hindi kami science journal. Sabihin sa amin sa [email protected] at aayusin namin.

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Higit pa mula sa parehong grupo: Mga rattlesnake

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Nakatira rin sa: Timog Amerika

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