Common Bluetongue (Tiliqua scincoides) lives in eastern Australian forests across Australia, Tanimbar and Babar Islands. Its conservation status is Least Concern.
Fascinating facts about the Common Bluetongue
- The common bluetongue can grow beyond 60 cm in total length and tip the scales at over 1 kg, making it a large terrestrial skink. Its body is stout with short legs, giving it a solid, low-profile silhouette. The skin displays a variable banded pattern that helps break up its outline in leaf litter. These dimensions and build support its reputation as a robust ground-dwelling predator.
- Females of this species are ovoviviparous, keeping fertilised eggs inside their bodies until the young are born alive. Each litter may contain anywhere from five to twenty-five offspring, and the eastern subspecies is noted for producing the largest broods among its relatives. This reproductive strategy, combined with a lifespan that can exceed thirty years, gives populations a strong capacity for long-term persistence.
- When it perceives a threat, the bluetongue employs a dramatic defence display rather than fleeing. It will hiss loudly, lunge forward, inflate its body and flash its vivid blue tongue to startle the aggressor. This combination of sounds, movement and colour can deter predators long enough for the lizard to retreat to safety. The behaviour showcases the species' bold temperament when confronted.
- The common bluetongue snaps up insects by flicking its tongue, which is coated in a sticky mucus that maintains surface tension and pulls the struggling prey back into the mouth. This same tongue tip also gathers microscopic molecules from the air and surfaces, delivering them to a sensory organ in the roof of the mouth that provides the lizard's sense of smell.
Sources
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At a glance
RangeAustralia, Tanimbar and Babar Islands
HabitatEastern Australian forests
DietInsects and leaves
About the Common Bluetongue
As the sun-baked earth awakens, the common bluetongue lizard stirs, its scaly body unfolding like a living, breathing fragment of the rocky outcroppings it calls home. With a deliberate, almost languid gait, it navigates the arid landscape, its piercing gaze scanning the terrain for the slightest whisper of movement, its bright blue tongue darting in and out of its mouth like a warning flag. In this harsh yet beautiful world, the bluetongue has evolved into a master of subtle, calculated movement, its every step a testament to the enduring power of adaptation in the face of adversity.
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