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491 Featured Specimen
Aldabra giant tortoise

Details

Aldabra giant tortoise

Aldabrachelys gigantea

Size
0.9–1.2 m · 150–250 kg
Diet
Herbivore
Activity
Diurnal
Sociality
Loose group
Lifespan
80–150 years

The Aldabra giant tortoise is a huge island tortoise of the Indian Ocean. Long-lived and slow-moving, it grazes and browses through grassland and coastal scrub.

Range

Habitat range map
Native range Occasional / Transient
AfrotropicalAfrotropicalAfrotropicalAfrotropical

Map: Ecoregions 2017 © RESOLVE (CC BY 4.0) · Natural Earth (PD)

Details

Habitat

It inhabits Afrotropical island grassland and coastal habitats. Open turf, shrubland, shade, and freshwater pools are important resources.

Appearance

Shell length 90-122 cm; weight 150-250 kg. A massive domed shell, thick legs, and long neck define the species. The neck can reach low shrubs as well as ground plants.

Behavior

Diurnal and loosely social, it is often seen in groups. During heat it rests in shade, mud, or pools and feeds in cooler periods.

Feeding

A herbivore, it eats grasses, leaves, fruit, and shrubs. Its grazing and trampling can shape island plant communities.

Reproduction

Females dig nests in the ground and lay eggs. Hatchlings are small, and growth to adult size takes many years.

Notes

It is listed as Vulnerable. With a limited range, it needs protection from invasive species, climate impacts, and coastal habitat change.