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  3. Madagascar Tree Boa

One of the 10 boas on WAnimals

Reptiles · Squamata · Boidae

Madagascar Tree Boa

Sanzinia madagascariensis

Least Concern

The species is abundant and widely distributed; it faces no significant short-term risk.

Spotted something wrong?

The Madagascar tree boa is a medium-sized constrictor, green or brown depending on the population, endemic to the island. It is viviparous and hunts birds, bats and rodents at night, detecting them with heat-sensitive pits on its lips. Its presence in Madagascar is a biogeographical puzzle: its closest relatives are in South America, not in Africa.

Weight

2 kg – 6 kg

Size

1.5 m – 2.5 m

Life expectancy

25 years

Diet

Carnivore

Feeds mainly on other animals.

Activity

Nocturnal

Active mainly at night.

Social structure

Solitary

Lives and hunts alone, joining others only to breed.

RainforestIslands
1countries8parks11same family

Fun facts

  • Its closest relatives are the South American boas, not the African snakes: it is a relic of the time when Madagascar, India, Africa and South America were all part of Gondwana, and one of the classic pieces of evidence for continental drift in biogeography.
  • It senses heat: pits in the labial scales let it locate warm-blooded prey in total darkness, forming a thermal image of its surroundings.
  • It is viviparous: it lays no eggs but gestates its young for six months and gives birth to between four and a dozen fully independent snakes.

Life cycle and biology

Skeleton type
Vertebrate - internal bony skeleton (reptile)
Habitat and environment
Rainforest, gallery forest and plantations of eastern and north-western Madagascar
Sexual maturity
4 years
Gestation / incubation
6 months of gestation
Litter / clutch size
8 live young

Sources consulted: IUCN Red List · Animal Diversity Web · Wikipedia (es)

Where to find it

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The pins mark the parks where its presence is documented.

Where to see it

Parks and dive sites where this species has been documented.

Related species

Other species in the catalogue with the most in common with Madagascar Tree Boa — same habitat, park, country, tags or family.

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See full glossary
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See its range on the interactive map→
Andasibe-MantadiaMadagascar
RanomafanaMadagascar
AndohahelaMadagascar
AndringitraMadagascar
MarojejyMadagascar
MasoalaMadagascar
Montagne d'AmbreMadagascar
ZahamenaMadagascar
Least Concern

Madagascar Day Gecko

Phelsuma madagascariensis

Least Concern

Panther Chameleon

Furcifer pardalis

Least Concern

Common Flat-tail Gecko

Uroplatus fimbriatus

Least Concern

Greater Hedgehog Tenrec

Setifer setosus

Parson's ChameleonNear Threatened

Parson's Chameleon

Calumma parsonii

Vulnerable

Spotted Fanaloka

Fossa fossana

CountriesMadagascar
ParksAndasibe-MantadiaMadagascar
TagsCarnivore
Carnivore
Nocturnal
Solitary
Reptile
Rainforest
Islands
Madagascar