Tarantula

Presentation

Tarantula is a common name for several large hairy spiders of the Theraphosidae family. They are distinguished by their imposing size, a body covered in urticating hairs in some American species, and powerful fangs. Found on several continents, they inhabit mainly warm and arid or tropical regions. Despite their fearsome reputation, most species pose little danger to humans. Today they are appreciated as exotic pets by tarantula enthusiasts.

The body consists of a cephalothorax and a globular abdomen, both covered in dense hair. Eight sturdy legs enable rapid movement and climbing of vertical surfaces. Some species have urticating hairs that they flick when threatened. Coloration ranges from dull brown to bluish or orange tones depending on the species.

Characteristics

Indicative values: they vary by subspecies, sex and region.

Habitat and distribution

The tarantula occupies varied habitats depending on species, ranging from humid tropical forests to desert and steppe regions. It often digs a burrow in the ground or shelters under stones and logs. Some tree-dwelling species live in the dense vegetation of forests. The tarantula prefers warm environments that provide easy access to prey.

Behaviour

The tarantula is essentially a solitary and nocturnal animal. It spends most of its time in a burrow or hiding place, venturing out mainly to hunt. When threatened, some species adopt a defensive posture or flick urticating hairs. Growth is accompanied by regular molts during which the spider is particularly vulnerable.

Reproduction

Reproduction takes place through direct mating, with the male transferring his sperm to the female using his pedipalps. The female then lays several hundred eggs in a silk cocoon, which she guards and protects. Young tarantulas emerge after several weeks of incubation and are independent from the moment they hatch. Females of certain species can live for several decades, considerably longer than males.

Peculiarities

Certain American species project irritating hairs from their abdomen to defend themselves against predators. The tarantula can regenerate a lost leg during successive moults. Its exceptional longevity in females, sometimes exceeding twenty years, is remarkable for an arthropod.

Threats and conservation

Habitat loss due to deforestation threatens certain tropical species. International trade for the terrarium hobby places pressure on some wild populations. Most species lack a precise conservation status, however, owing to insufficient data.

References

Profile updated 28 August 2026 · Reviewed by the TunisieVet editorial team.

CONSERVATION STATUS

Data deficient (DD)

IUCN source, latest published assessment.

Documented diseases for this species.

This information is provided for educational purposes only and is not a substitute for a veterinary consultation. If you have any concerns about your animal's health, consult a veterinarian.

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