Gaboon Viper Fact Sheet

General Characteristics

Gaboon vipers are very large vipers reaching 3.9 to 7.2 feet (1.2 to 2.2 m) in length as adults and weighing up to 22 pounds (10 kg). Their coloration is cryptic and allows them to camouflage in leaf litter.

Physical Adaptations

This species envenomates their prey with 2-inch long (5 cm) fangs. Their venom contains hemotoxins and neurotoxins.

Behavioral Adaptations

Gaboon vipers are solitary and only come together for mating purposes. They can communicate through chemical signals, visual signals, and by detecting and emitting vibrations. If provoked they will produce a loud hissing sound or will bite the offender delivering a deadly dose of venom, however, this is a relatively docile species that rarely bite people. They are nocturnal animals that become active after the sunsets.

Distribution and Habitat

Gaboon vipers are found in low-altitude rainforest and tropical forests throughout central and western Africa.

Bitis rhinoceros has been observed in Côte d'Ivoire, Ghana, Guinea, Liberia, Sierra Leone, and Togo.

Bitis gabonica has been observed in Cameroon, Central African Republic, the Congo, Gabon, Ghana, Malawi, Mozambique, Nigeria, South Africa, South Sudan, Tanzania, Togo, Uganda, West, Zambia, and Zimbabwe.

They are a terrestrial species that hide amongst leaf litter.

In the Wild

Gaboon vipers are ambush predators; they lie in wait amongst leaf litter and wait for prey to pass by. They kill their prey through envenomation. Most of their diet consists of small mammals, ground-dwelling birds, and amphibians. There are reports of them eating larger prey, including giant rats, brush-tailed porcupines, and royal antelopes.

In Captivity

Gaboon vipers do well on a pre-killed or frozen/thawed rodent-based diet, with occasional supplements of chicken or quail.


Gaboon vipers mate every two to three years between the months of September and December, which is the rainy season in Africa. Gaboon vipers do not lay eggs, instead, they are viviparous. After a seven-month gestation period, the female gives birth to 20 to 50 offspring. Hatchlings are 9 to 14 inches (22.9 to 35.6 cm) in length, they are fully independent and do not require any parental care.


Class: Reptilia
Order: Squamata
Family: Viperidae
Genus/species: Bitis rhinoceros (West African Gaboon Viper)
Genus/species: Bitis gabonica (East African Gaboon Viper)


Least Concern (LC)
This species was evaluated as a species of Least Concern as of a 2012 IUCN assessment.


Many of the gaboon vipers in the reptile-hobby have been taken from the wild or farm-raised. The process of importing this species can be very dangerous for the animals and many of them die in transit to European and North American markets. Other threats include deforestation and forest degradation.


Life Span

In captivity, gaboon vipers have been recorded living up to 18 years.

Captive Husbandry

Enclosure: Many people keep gaboon vipers in an 8 square foot enclosure (2.44 m2) 4-foot x 2-foot x 2-foot (122 cm x 61 cm x 61 cm) enclosure, but larger enclosures are preferred.

Substrate and Decor: They can be housed on cypress bedding, a soil mixture, aspen shavings, newspaper, or paper towels. A hide box, wood, and leaf litter should be offered.

Lighting: These animals are nocturnal so they do not require UVB lighting, however, some sort of daytime lighting should be used to keep their “internal clocks” in order.

Temperature: Enclosures should be set up to create a heat gradient – ambient temperature should be one side of the enclosure should be 81 to 86 degrees Fahrenheit (27.2 to 30 ℃) and the cooler side should be about 76 degrees Fahrenheit (24.4 ℃). The basking spot should be 92 to 95 degrees Fahrenheit (33.3 to 35 ℃). Temperatures should be dropped 10 degrees Fahrenheit (5.6 ℃) at nighttime. Heating can be accomplished with an appropriately sized radiant heat panel (RHP) or ceramic heat emitter (CHE), alternatively, heat tape or heat pads can be used. Thermostats should be used for any heating device to prevent burns.

Humidity and Water: Humidity should be between 75% to 85%, installing ventilation fans on the enclosure helps to prevent respiratory infections. Many gaboon vipers are wild-caught and refuse to drink from still water, sometimes they must be offered moving water, or they can die from dehydration.

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