Aldabra Giant Tortoise

Fascinating facts about the Aldabra Giant Tortoise

• A carapace that stretches 122 cm (48 in) makes the Aldabra giant tortoise, while a male can tip the scales at 250 kg (550 lb). Females are smaller, averaging 91 cm (36 in) and 159 kg (351 lb), and captive specimens range from 70 kg to 110 kg, with some individuals recorded at 132 kg (291 lb). This massive build lets the tortoise reach branches a meter up.
• Where the Aldabra tortoise grazes, a special carpet of plant life called "tortoise turf" thrives, a mix of more than 20 grass and herb species that have evolved to stay low and drop their seeds near the ground, dodging the tortoise's close-cropping jaws. By constantly trimming vegetation, the tortoise creates open pathways that other animals use, much like an elephant does in savannas. This grazing pressure not only keeps the landscape open but also preserves a unique suite of dwarf plants.
• Some Aldabra giants may outlive the pyramids: Adwaita, captured in the 18th century, died in March 2006 at an estimated 255 years old, having been born around 1750. Other individuals are thought to be over 200 years old, with Esmeralda recorded at 182 years and a Zanzibar resident reported at 200 years.
• When spring rolls around, a female Aldabra lays between 9 and 25 hard-shelled eggs in a nest 30 cm deep, but less than half of those eggs are fertile, making each clutch a high-stakes gamble. After about eight months of incubation, the tiny hatchlings emerge between October and December, ready to fend for themselves. In captivity, raising the temperature to 30 °C (86 °F) speeds development, with eggs hatching in just 107 days, while a cooler 27 °C (81 °F) slows the process. These precise reproductive windows illustrate how temperature and timing dictate the species' survival.
• The Aldabra Atoll shelters the world's largest gathering of its kind, about 100 000 giant tortoises roaming its grasslands. Conservationists have bolstered this natural army by moving 50 small individuals and 10 larger ones to nearby Aride Island.

Sources

Every fact above was checked against these pages, and kept only where one of them states it.

• Wikipedia

At a glance

About the Aldabra Giant Tortoise

In the scorching expanses of the Indian Ocean, the Aldabra Giant Tortoise roams as a gentle leviathan, its ancient, weathered shell a testament to a life measured in centuries, not years. As it lumbers through the coastal scrub, its stately gait belies a deep-seated resilience, forged over millennia of adaptation to the harsh, sun-baked landscape of its native atolls. With a wise, unblinking gaze, this venerable creature navigates its domain, a living embodiment of the slow, deliberate pulse of the natural world.

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