South American rattlesnake
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

Ako ho spoznať
- 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
Sila jedu
Jed vychádza cez jedové zuby, keď hryzie.
Čo robí jeho jed?
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
Aké nebezpečné je pre ľudí?
Nebezpečenstvo pre ľudí: Veľmi nebezpečnéČloveka, ktorý nedostane liečbu, môže zabiť.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
Dobrá správa: lekári na to majú liek (protijed) alebo liečbu.1
Čo robí, keď sa bojí?
It is highly alert and gives little warning before it strikes, but it is seldom aggressive towards people.1
Ak uhryzne
- Specific serum treatment (antivenom) greatly lowers the death rate, so a bite needs urgent hospital care to give it.1
- Drž postihnutého v pokoji a bez pohybu, drž uhryznutú končatinu vo výške srdca, daj dole prstene a všetko tesné a rýchlo sa dostaňte do nemocnice.
Vždy najprv zavolaj na tiesňovú linku (112, 000, 911). Toto sú všeobecné rady prvej pomoci, nie lekárska rada. Základy prvej pomoci
Buď v bezpečí
- Nikdy sa nedotýkaj divého zvieraťa, nechytaj ho ani ho nedráždi, aj keď je malé a aj keď vyzerá, že spí alebo je mŕtve.
- Nechaj mu priestor. Ak nejaké stretneš, zostaň pokojný, pomaly cúvni a nechaj ho ísť svojou cestou.
- Ak ťa uhryzne: zostaň pokojný, nehýb sa, zavolaj na tiesňovú linku (112, 000, 911) alebo sa rýchlo dostaň do nemocnice. Zapamätaj si, ako vyzeralo, fotka pomôže.
Nejde po tebe. Jed používa na chytanie potravy alebo na obranu a oveľa radšej sa schová. Viac o tom, ako zostať v bezpečí
Aké je veľké?
Aké je dlhé?
dlhé ako 4 domácich mačiek od nosa po chvost
dlhé ako 11 banánov za sebou
by prebehlo 100 metrov za 90 sekúnd (najrýchlejší človek potrebuje 9,6)Aký veľký je South American rattlesnake v porovnaní s TEBOU?
Iba matematika v tvojom prehliadači. Nič sa neukladá ani nikam neposiela.
Aké je rýchle?
Fakty
The lethal dose for a 60 kg human is possibly 18 mg, while a snake's venom yield is 20 to 100 mg.1
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
It is the most widely distributed member of its genus, and seven subspecies are currently recognised.1
It is more active at dusk and in the early hours of the morning.1
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
Lovec mýtov
Mýtus: Yellow venom means the bite damages blood and tissue, and white venom means it attacks the nerves.
Pravda: Venom colour does not determine the type. Colour depends on pigments in the venom, not on whether it is haemorrhagic or neurotoxic.1
Pre znalcov jedov
- Vedecký názov
- Crotalus durissus
- Skupina
- Štrkáče
- Rodina
- Viperidae2
- Rad
- Squamata
- Kontinenty
- Južná Amerika
- Mláďatá
- 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
- Nebezpečenstvo pre ľudí
- 4 / 5: Veľmi nebezpečné3
Odkiaľ sú fakty
- Crotalus durissus (Wikipedia (CC BY-SA 4.0))
- Crotalus durissus (iNaturalist): mená a klasifikácia.
- Venom Wiki: úroveň nebezpečenstva, typická veľkosť a odhad rýchlosti sú naše vlastné. Pozri, ako ich určujeme: Ako hodnotíme nebezpečenstvo.
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Uhryznutia
