Calabar Boa
Calabaria reinhardtii
A cylindrical, burrowing boa-like snake from West and Central Africa with a distinctive blunt tail used to confuse predators.
- Venomous?
- Non-venomous
- Adult length
- 0.6-1 m (2-3.3 ft)
- Range
- West and Central Africa
Found a snake like this?
Identify any snake from a photo, free.
Overview
The Calabar Boa is a highly fossorial species from the rainforests of West and Central Africa, sometimes classified within Boidae and other times placed in its own family due to its unusual morphology and burrowing lifestyle.
It is best known for its defensive behavior of curling into a ball and displaying its blunt tail, which mimics its head, to deter predators—a strategy shared with some other burrowing snakes.
How to identify it
- Cylindrical, smooth body with a small head barely distinct from the neck
- Uniform brown, reddish, or dark coloration, sometimes with faint pale blotches
- Blunt, rounded tail that resembles the head, used in defensive displays
- Small eyes adapted for a burrowing lifestyle
- Distinguished from true pythons/boas by its extreme fossorial adaptations and tail mimicry
Habitat & range
Inhabits lowland rainforest and forest floor leaf litter and loose soil across West and Central Africa, spending much of its time underground or under surface debris.
Behavior, diet & reproduction
Highly secretive and fossorial, rarely seen above ground. Feeds primarily on small mammals, often taking multiple young from a nest in a single feeding bout. When threatened, it curls into a ball hiding its head and presents its blunt tail as a decoy. Unusually among boas, it is oviparous, laying a small clutch of large eggs.
Frequently asked questions
Is the Calabar Boa venomous?
No, it is a non-venomous constrictor.
Why does its tail look like its head?
The blunt tail mimics the head shape to confuse predators, allowing the true head to stay hidden while the tail absorbs an attack.
Is it commonly seen in the wild?
No, it is highly secretive and fossorial, spending most of its time underground or hidden, so encounters are rare.
Where does it live?
Rainforests of West and Central Africa.
Does it lay eggs?
Yes, unusually for a boa, the Calabar Boa is egg-laying rather than live-bearing.
Calabar Boa guides
In-depth guides for identifying and understanding Calabar Boa.
