Fauna
Reptile

Aldabra Giant Tortoise

Aldabrachelys gigantea

Also known as Aldabra Tortoise, Seychelles Giant Tortoise

Aldabra giant tortoises are massive herbivores that shape island ecosystems through heavy grazing, seed dispersal, and trampling vegetation into open meadows. These long-lived reptiles gather in large herds around freshwater pools during hot afternoons and extend their elongated necks high into shrubs to reach browse. Their remarkable resilience allows them to thrive on rugged coral atolls where few other large land animals can survive.

GiantReptileLong-Lived
Aldabra Giant Tortoise reference1 / 7
(c) Eliane Küpfer, some rights reserved (CC BY-SA), uploaded by Eliane Küpfer · cc-by-sa
—observations
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VulnerableConservation statusIUCN Red List categoriesLCNTVUENCREWEXVulnerableRed List categories, explained →
Key facts
Diet & preyGrasses, Sedges, Fallen Fruit
Predators
  • Feral Cats
  • Feral Pigs
  • Rats
ThreatsSea-level rise, climate change, invasive nest predators, habitat loss
HabitatsCoastal scrub, grasslands, mangrove edges, island inland clearings
Life span80–150+ years
Classification
  1. FamilyTestudinidae
  2. GenusAldabrachelys
  3. SpeciesAldabrachelys gigantea
Range & activity
Range data is not available yet.
Safe observation
Interaction riskHigh
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is high
Heavy and powerful; maintain a respectful distance and avoid touching or feeding them.
Why it is dangerous
Their massive body weight can inflict crush injuries and their horn-rimmed jaws deliver powerful bites when cornered or fed.
How to recognize a risky encounter
Look for a massive dark grey or black high-domed shell supported by sturdy, elephantine legs.
What to do
Keep a distance of several meters, avoid stepping into their movement path, and never offer food by hand.
What to notice
Recognize them by their massive grey carapace and unusually flexible, long neck used for high browsing.
Support conservation
Remain on established eco-tour paths and refrain from touching or crowding wild individuals.
Responsible observation
  • Give Space: Allow these massive reptiles ample room to move without blocking their path.
  • Do Not Feed: Hand-feeding creates habituation and increases the risk of accidental bites.
  • Watch Your Step: Stay alert on trail edges where hatchlings and fragile nests may be hidden.
Related species
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