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Researchers from the conservation group SOS (Save Our Sulcata) released 500 African spurred tortoises (Centrochelys sulcata) into the southern Sahara Desert. The heavy tortoises dig deep underground tunnels, breaking the hard crust that covers the sand and allowing rainwater to infiltrate. Satellite images and a study by the International Union for Conservation of Nature (IUCN) later showed natural green patches forming around the tortoise burrows without the use of machinery or fertilizers.

The burrows also create habitats for insects and earthworms, further supporting seed germination carried by the wind. The initiative demonstrates a low‑tech, biologically driven method of restoring vegetation in extreme desert conditions.

Entities: Centrochelys sulcata · International Union for Conservation of Nature (IUCN) · SOS (Save Our Sulcata) · Sahara desert