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Golden lancehead

Bothrops insularis
Davart il num: Its common name comes from the light yellowish-brown colour of its underside and from its lance-shaped head, which is typical of the genus Bothrops.1
Po mazzarPo ta mazzar senza tractament. Sch'el ta morda, tschertga spert agid.
Vipras da fossa MorsasMangia: Charn
Privel per umans: Fitg privlusEl po mazzar ina persuna che na survegn nagin tractament.

The golden lancehead is an extremely venomous pit viper that lives only on one small Brazilian island, Ilha da Queimada Grande. It is one of the most venomous snakes in Latin America. Because the island is uninhabited and closed to visitors, it is very unlikely that people will ever meet one.1

Viva en
Ilha da Queimada Grande (Snake Island), off the coast of São Paulo state, Brazil. Found nowhere else in the wild.1
America dal Sid
Pagina iniziala
The island has forest, clearings and shrubs, and a mild climate that stays between 18 °C and just over 22 °C. The rocky terrain makes the island hard to reach, and no humans or other mammals live there. The snake hunts in trees and shelters in leaf litter or rock crevices.1
Lunghezza
70 cm fin 1,2 m (2,3 ft fin 3,9 ft)1
Sveltezza maximala
circa 3,5 km/h (2,2 mph)
Sin terra, stima approximativa
Tge mangia el?
Adults mostly eat perching birds and also lizards, and may sometimes eat other golden lanceheads. After biting prey, it keeps the animal in its mouth instead of releasing it and tracking it, which is thought to suit hunting birds.1
Propi!Foto da Golden lancehead
Golden lancehead. Foto: Nayeryouakim. CC BY-SA 4.0, Wikimedia Commons.

Co renconuscher el

  • Pale yellowish-brown body with a series of dorsal blotches that may be triangular or square.1
  • Belly is a uniform pale yellow or cream.1
  • Lance-shaped head that comes to a point at the nose.1
  • No well-defined stripe running behind the eye.1
  • Has a longer tail than its closest relative, B. jararaca.1

Savens confundì cun: Its closest relative is B. jararaca, which lives in southern Brazil, Paraguay and northern Argentina. The golden lancehead can be told apart from it mainly by its longer tail.1

Forza dal tissi

Morsas

Il tissi vegn or tras ses dents da tissi u ses dents, cura ch'el morda.

Tge fa ses tissi?

Its venom is adapted to the animals of the island, mainly reptiles, arthropods and migrating birds, so it works better on these than on mammals. Chemical analysis suggests it is five times as potent as the venom of B. jararaca and is the fastest-acting venom in the genus Bothrops. Its venom becomes more potent as the snake matures. Effects reported in envenomations include swelling, pain, nausea, vomiting, blood blisters, bruising, bleeding into the gut and brain, kidney failure and severe muscle damage.1

Quant privlus è el per umans?

Privel per umans: Fitg privlusEl po mazzar ina persuna che na survegn nagin tractament.

No official report of a human bite from this species has been made, because the island is uninhabited. Other lanceheads cause more human deaths than any other group of snakes in North or South America. One researcher reports four human envenomations by this species, three of which were fatal. For lanceheads in general, the mortality rate is 0.5 to 3.0% with treatment and 7.0% without it.1

Sch'el morda

  • Tegna la persuna immobila e quieta, tegna il member mors a l'autezza dal cor, prenda giu anels e chaussas strenschidas e va spert en in ospital.

Clama adina l'emprim tes numer d'urgenza (112, 000, 911). Quai è in cussegl general d'emprim agid, betg in cussegl medicinal. Basa da l'emprim agid

Resta en segirezza

  • Na tutga, na piglia e na tizza mai in animal selvadi, gnanc in pitschen, ed era sch'el para da durmir u d'esser mort.
  • Dà spazi a l'animal. Sche ti scuntras in, resta calm, va plaun enavos e lascha ir el per sia via.
  • Sch'in tal animal ta morda: resta calm, na ta mova betg, clama tes numer d'urgenza (112, 000, 911) u va spert en in ospital. Ta regorda co ch'el veseva or, ina foto gida.

El n'ha betg quai sin tai. El dovra ses tissi per pigliar nutriment u per sa defender, e sa zuppa bler pli gugent. Dapli davart la segirezza

Nua sin il mund?

AfricaAsiaEuropaAmerica dal NordAmerica dal SidAustralia ed Oceania

Quant grond è el?

Quant lung è el?

Golden lancehead circa 1,2 m lung (3,9 ft)In chaun circa 1 m (3,3 ft)In creschì circa 1,7 m (5,6 ft)
uschè lung sco 2,5 giats da chasa dal nas fin a la cuauschè lung sco 7 bananas ina suenter l'autrapudess currer 100 meters en 100 secundas (l'uman il pli svelt dovra 9,6)

Quant grond è Golden lancehead cumpareglià cun TAI?

Mo matematica en tes navigatur. Nagut na vegn memorisà u tramess.

Quant svelt è el?

bun da savair

Fatgs

1

Its venom is thought to be five times as potent as that of its closest relative, B. jararaca.1

2

Its venom has evolved to suit the animals of its island, which has no native mammals.1

3

Its tail is longer than that of its closest relative, which may help it climb through trees and catch larger birds from a younger age.1

4

The island's population was estimated at between 2,414 and 2,899 snakes in 2021.1

5

Travel to the island is strictly prohibited by the Brazilian government.1

6

It is found only on Ilha da Queimada Grande, an island of about 43 hectares, and nowhere else in the wild.1

Per experts da tissi

Num scientific
Bothrops insularis
Gruppa
Vipras da fossa
Famiglia
Viperidae2
Urden
Squamata
Continents
America dal Sid
Poppins
Like most vipers, it gives birth to live young. The average number of young per pregnancy is 6.5.1
Co ch'i va ad el en la natira
Critically Endangered (IUCN Red List)1
Privel per umans
4 / 5: Fitg privlus3

Da nua che vegnan ils fatgs

  1. Golden lancehead (Wikipedia (CC BY-SA 4.0))
  2. Bothrops insularis (iNaturalist): nums e classificaziun.
  3. Venom Wiki: il stgalim da privel, la grondezza tipica e la stima da la sveltezza èn noss agens. Guarda co che nus als calculain: Co che nus valitain il privel.

Mintga fatg sin questa pagina ha in numer che renvia a sia funtauna. Sche nus avain fatg in sbagl, perstgisa, nus essan fans d'animals, betg ina revista scientifica. Scriva a nus a [email protected] e nus curregin.

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