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Marrazkia: South American rattlesnake
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South American rattlesnake

Crotalus durissus
Hil dezakeTratamendurik gabe hil zaitzake. Kosk egiten badizu, eskatu laguntza azkar.
Kriskitin-sugeak KoskaJaten du: Haragia
Arriskua pertsonentzat: Oso arriskutsuaTratamendurik jasotzen ez duen pertsona bat hil dezake.

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

Non bizi den
South America except the Andes, including Colombia, Venezuela, Brazil, Argentina and Paraguay; also some Caribbean islands, including Aruba1
Hego Amerika
Hasiera
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
Luzera
1,9 m (6,2 ft)1
Abiadura handiena
4 km/h inguru (2,5 mph)
Lehorrean, kalkulu gutxi gorabeherakoa
Zer jaten du?
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
Benetan!Argazkia: South American rattlesnake
South American rattlesnake. Argazkia: Leandro Avelar. CC BY-SA 4.0, Wikimedia Commons.

Nola ezagutu

  • 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

Pozoi-ahalmena

Koska

Pozoia letaginetatik edo hortzetatik ateratzen da kosk egiten duenean.

Zer egiten du bere pozoiak?

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

Zein arriskutsua da pertsonentzat?

Arriskua pertsonentzat: Oso arriskutsuaTratamendurik jasotzen ez duen pertsona bat hil dezake.

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

Albiste ona: medikuek badute sendagai bat (antipozoia) edo tratamendu bat honetarako.1

Zer egiten du beldurtzen denean?

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

Kosk egiten badu

  • Specific serum treatment (antivenom) greatly lowers the death rate, so a bite needs urgent hospital care to give it.1
  • Eutsi pertsona geldi eta lasai, eduki koska jasotako gorputz-adarra bihotzaren mailan, kendu eraztunak eta gauza estuak, eta joan ospitalera azkar.

Deitu beti lehenik zure larrialdi-zenbakira (112, 000, 911). Lehen sorospenei buruzko orientabide orokorra da hau, ez mediku-aholkua. Lehen sorospenen oinarriak

Egon seguru

  • Ez ukitu, ez harrapatu eta ez zirikatu inoiz animalia basati bat, txikia izan arren, eta lo edo hilda dagoela badirudi ere.
  • Utzi tartea. Bat aurkitzen baduzu, egon lasai, egin atzera poliki eta utzi bere bidetik joaten.
  • Batek kosk egiten badizu: egon lasai, egon geldi, deitu zure larrialdi-zenbakira (112, 000, 911) edo joan ospitalera azkar. Gogoratu nolakoa zen, argazki batek laguntzen du.

Ez dabil zure atzetik. Pozoia janaria harrapatzeko edo bere burua babesteko erabiltzen du, eta askoz nahiago du ezkutatu. Seguru egoteari buruz gehiago

Zein handia da?

Zein luzea da?

South American rattlesnake 1,9 m inguru luze (6,2 ft)Heldu baten bizikleta 1,8 m inguru (5,9 ft)Auto bat 4,5 m inguru (15 ft)
4 etxeko katu muturretik buztanera jarrita bezain luzea11 banana bata bestearen atzetik jarrita bezain luzea100 metro 90 segundotan egin litzake (gizakirik azkarrenak 9,6 behar ditu)

Zein handia da South American rattlesnake ZUREKIN alderatuta?

Matematika hutsa zure nabigatzailean. Ez da ezer gordetzen, ezta inora bidaltzen ere.

Zein azkarra da?

jakin beharrekoa

Datuak

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

Mito-hauslea

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

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

Pozoi-adituentzat

Izen zientifikoa
Crotalus durissus
Taldea
Kriskitin-sugeak
Familia
Viperidae2
Ordena
Squamata
Kontinenteak
Hego Amerika
Kumeak
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
Arriskua pertsonentzat
4 / 5: Oso arriskutsua3

Datuak nondik datozen

  1. Crotalus durissus (Wikipedia (CC BY-SA 4.0))
  2. Crotalus durissus (iNaturalist): izenak eta sailkapena.
  3. Venom Wiki: arrisku-maila, ohiko tamaina eta abiadura-kalkulua geureak dira. Ikusi nola kalkulatzen ditugun: Nola baloratzen dugun arriskua.

Orrialde honetako datu bakoitzak zenbaki bat du, bere iturrira eramaten zaituena. Zerbait gaizki badugu, barkatu, animalien zaleak gara, ez zientzia-aldizkari bat. Esaiguzu [email protected] helbidean eta konponduko dugu.

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