Lesser Blind Molerat (Nannospalax leucodon) lives in temperate grasslands across Southeast Europe and Asia. Its conservation status is Least Concern.
Fascinating facts about the Lesser Blind Molerat
- The lesser blind mole-rat has tiny simple eyes only about 1 mm across, hidden beneath a layer of skin and fur. These eyes are not vestigial; they function as light sensors rather than image-forming organs. By detecting the amount of ambient illumination the animal can tell whether it is in darkness or light, which guides its underground activity. This light-meter ability is crucial for timing surface excursions and burrow maintenance.
- The mole-rat's eyes serve only as a light meter, registering the brightness of the surroundings at any moment. They do not provide detailed vision, merely indicating whether light is present or absent.
- Dental studies have shown that the lesser blind mole-rat is a superspecies composed of several cryptic forms, each distinguished by tiny cavities, or caries, in their teeth. In the Carpathian Basin four such cariological forms have been identified, with one classified as endangered and another as vulnerable, while data are lacking for the remaining two.
- Researchers selected the lesser blind mole-rat for ageing experiments because it outlives most rodents and can survive extreme low-oxygen and high-carbon-dioxide conditions, traits that make it a valuable model for longevity research. Studies have highlighted its remarkable tolerance to hypoxia and hypercapnia, as well as an unusual resistance to cancer development.
- The lesser blind mole-rat was officially declared extinct in Croatia in 1984 after it vanished from the Srijem area, a status that persisted for decades. However, field surveys in 2023 confirmed the species' continued existence at Vučedol, overturning the long-standing extinction record. This rediscovery demonstrates that the animal survived unnoticed in a small refuge despite earlier assumptions of its disappearance.
Sources
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At a glance
RangeSoutheast Europe and Asia
HabitatTemperate grasslands
DietRoots and tubers
About the Lesser Blind Molerat
In the sun-baked soils of Eastern Europe and Western Asia, the Lesser Blind Molerat excavates its subterranean realm with industrious dedication, its pink, hairless body undulating as it burrows through the dark, damp tunnels it calls home. With eyes reduced to mere vestiges, this enigmatic creature navigates its underground world through a keen sense of touch and smell, its long, pointed snout twitching as it probes the soil for roots and tubers to sustain it. As it moves unseen, the Lesser Blind Molerat shapes its surroundings with quiet purpose, crafting a hidden landscape of tunnels and chambers that rival the complexity of the world above.
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