South American Bushmaster - Los Angeles Zoo and Botanical Gardens (2024)

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About

The bite of the bushmaster is one of the deadliest snake bites in the world with a high mortality rate even with treatment. This snake’s striking speed is so rapid and its venom is produced in such large quantities, that it is able to kill almost anything that crosses its path. However, bushmasters are shy and secretive snakes that generally avoid confrontations. The scientific genus nameLachesisrefers to one of the three Fates from Greek mythology. Lachesis assigned each person’s lifespan, a tribute to the lethal power of the bushmaster’s bite.

The bushmaster is a type of pit viper and hunts at night. The snake uses heat-sensing pits located near its nose to detect warm-blooded prey. Bushmasters are solitary ambush predators. They position themselves along mammal trails, sometimes for weeks, until prey eventually crosses their path. With a maximum length of about 12 feet, the bushmaster is the largest of all venomous snakes in the western hemisphere.

The bushmaster is one of the few snakes known to guard its eggs. A female will lay between five and 18 eggs in a burrow and remain close by, sometimes coiling around the clutch in order to deter predators. She will not eat during the incubation period. Eggs hatch in 60 to 78 days. Newborns are about 15 inches long with bright orange or yellow on the tips of their tails to help them lure prey. Once the eggs hatch, the mother departs, and the babies are on their own. The youngsters are equipped to hunt, with fully formed fangs and venom.

This shy snake is difficult to find in its habitat, so the population of bushmasters in the wild is unknown. Its numbers are likely decreasing due to deforestation.

South American Bushmaster - Los Angeles Zoo and Botanical Gardens (1)
South American Bushmaster - Los Angeles Zoo and Botanical Gardens (2)

South American Bushmaster - Los Angeles Zoo and Botanical Gardens (3)

South American Bushmaster - Los Angeles Zoo and Botanical Gardens (4)

Habitat

The bushmaster is native to the forests of northwestern South America, including Colombia, Venezuela, Brazil, Peru, Ecuador, and Bolivia.

Diet

This snake typically feeds on the small mammals of the forest including rodents, rabbits, and small birds. It prefers smaller prey than most snakes its size.

Physical Characteristics

With a length of 6 to 12 feet, the bushmaster is one of the longest venomous snakes in the world. Individuals may weigh up to 11 pounds. They have thick bodies and broad heads. Males are larger than females. Lifespan ranges from 12 to 18 years.

South American Bushmaster - Los Angeles Zoo and Botanical Gardens (2024)

FAQs

What are some interesting facts about the bushmaster snake? ›

Bushmasters are solitary ambush predators. They position themselves along mammal trails, sometimes for weeks, until prey eventually crosses their path. With a maximum length of about 12 feet, the bushmaster is the largest of all venomous snakes in the western hemisphere.

What is the most venomous snake in the world? ›

The inland taipan (Oxyuranus microlepidotus) is considered the most venomous snake in the world with a murine LD 50 value of 0.025 mg/kg SC. Ernst and Zug et al. 1996 list a value of 0.01 mg/kg SC, which makes it the most venomous snake in the world in their study too. They have an average venom yield of 44 mg.

What is the most venomous snake in South America? ›

The fer-de-lance's name means 'spearhead' in French. It is the most dangerous snake of Central and South America, and causes more human deaths than any other American reptile. On average, a fer-de-lance injects 105mg of venom in one bite, although a venom yield of up to 310mg has been recorded while milking them.

How big does a bushmaster snake get? ›

Bushmasters are venomous snakes of scrublands and tropical and mountain rainforests of Central and South America. They are among the longest venomous snakes of the Americas. Adults average 6 feet (1.8 meters) in length but can grow up to 12 feet (3.7 meters) long.

Is the Bushmaster snake poisonous? ›

The bushmaster (Lachesis muta) of Central and South America, the world's longest pit viper, is capable of injecting a large dose of potent venom when it bites. A 28-year-old man, bitten by a 1.82 m long L. m. muta in Brazil, developed pain and oedema at the bite site, nausea, vomiting, diarrhoea and sweating.

What snake has killed the most humans? ›

The killer of the most people

The saw-scaled viper (Echis carinatus) may be the deadliest of all snakes, since scientists believe it to be responsible for more human deaths than all other snake species combined.

What is the most aggressive snake towards humans? ›

This snake, found in sub-Saharan Africa, is one of the most feared of all. Unlike the relatively docile inland taipan, the black mamba is known to be particularly aggressive. Although it does not seek out humans, when cornered or threatened it will rear up and strike repeatedly.

What is the fastest snake in the world? ›

With a record of 18 mph strike speed, the Sidewinder is at the top of the list and is considered the fastest in the world. These snakes move sidewards and are almost unbeatable on the ground.

Can you survive a bushmaster bite? ›

The bushmaster has a bite so venemous that humans only have a 25% chance of surviving one.

What to do if bitten by a fer-de-lance? ›

Apply first aid while waiting for EMS staff to get you to the hospital.
  1. Lay or sit down with the bite in a neutral position of comfort.
  2. Remove rings and watches before swelling starts.
  3. Wash the bite with soap and water.
  4. Cover the bite with a clean, dry dressing.

What is the heaviest snake in South America? ›

A member of the boa family, South America's green anaconda is the heaviest snake in the world. Its cousin, the reticulated python, can reach slightly greater lengths, but the enormous girth of the anaconda makes it almost twice as heavy.

What are some facts about the largest snake? ›

Titanoboa, discovered by Museum scientists, was the largest snake that ever lived. Estimated up to 50 feet long and 3 feet wide, this snake was the top predator in the world's first tropical rainforest.

Why is the snake called a Bushmaster? ›

muta, although infrequent,36 can be severe due to the high amount of venom inoculated (up to 552 mg of dry venom per bite). “The Couni Couchi or Bushmaster is the most dreaded of all the South America serpents; and, as his name implies, he roams absolutely master of the forest.

What is the biggest snake facts? ›

The green anaconda is the largest snake in the world, when both weight and length are considered. It can reach a length of 30 feet (9 meters) and weigh up to 550 pounds (227 kilograms). To picture how big that is, if about five ten-year-olds lie down head to foot, they'd be about the length of this huge snake.

How long can a Bushmaster snake grow? ›

Three species of bushmaster (L. muta, L. stenophrys, and L. melanocephala) are known to exist, and they normally measure about 1.8 metres (6 feet) long but may grow to as long as 3 metres (10 feet).

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