Furry Diary

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Blue-tongued Skink

Tiliqua scincoides

Also called Common bluetongue, Eastern bluetongue, Northern bluetongue, Blue-tongued lizard, Blue tongue skink

SpeciesShort profile

From Australia (eastern, southern and northern regions) plus the Tanimbar and Babar Islands of Indonesia. Three subspecies: eastern (T. s. scincoides), northern (T. s. intermedia, the most kept) and Tanimbar (T. s. chimaerea).123

At a glance the quick version

Length38 to 61 cm143
Lifespan15 to 35 years14
Sizemedium
Docile and very handleable (northern)
Curious personality
Long-lived
314

Looks how to spot one

Stout, short-legged skink with a cobalt-blue tongue

A heavy-set lizard with a broad triangular head, a smooth torpedo-shaped body and small legs. Glossy scales carry a banded pattern, and northern animals show yellow or orange patches along the sides. The vivid blue tongue reflects ultraviolet light that people cannot see.143

ColoursBrown or grey with darker bandsYellow or orange side patches (northern)Captive-bred red, orange, caramel, white and gold or silver phasesBlue-violet to cobalt tongue13

Personality what they are like

Curious and steady, and the northern subspecies in particular has become very tame through many generations of captive breeding. When startled it puffs up, hisses and flashes its blue tongue as a bluff.31

Daily activity how busy a day looks

Diurnal and ground-dwelling; needs a long enclosure to explore and bright 'sunlight' to stay active.45

Grooming and care the hands-on bits

Calcium at every meal and a multivitamin weekly for juveniles or twice monthly for adults. Place the enclosure where the skink can watch household life for enrichment.67

Home where they are happiest

At least about 1.1 m2 (12 sq ft) of floor, for example 180 x 60 cm, and 46 cm tall (60 cm if equipment is inside). For T. scincoides: basking 40-46 C (105-115 F), cool side 21-29 C, nights 18-24 C. Northern blue-tongues do well at 40-60% humidity. UVB reaching UVI 3-4 at the basking spot plus bright daylight.75

Food basics what goes in the bowl

Omnivore. Adults eat about 50-60% animal protein (roaches, crickets, earthworms, snails, egg) and 40-50% vegetables, with fruit under 10%. Babies eat daily, juveniles three times a week and adults once or twice a week.61

Company who they like around

Keep one skink per enclosure; they are territorial and do not need company.7

The story where it all began

John White described the species in 1790, making it one of the earliest Australian lizards named by science. It is a familiar garden resident around cities such as Sydney, and its blue tongue and inquisitive nature have made it a popular pet abroad.21

Fun facts for the dinner table

  1. 1

    Females give birth to live young, typically 5-25 per litter.1

  2. 2

    Its blue tongue reflects UV light, which may help it signal or startle predators.4

  3. 3

    Gardeners welcome it because it eats slugs and snails.1

  4. 4

    The northern subspecies is the largest and heaviest of all blue-tongued skinks.3

Recognised by the official bits

The Reptile Database
Valid species Tiliqua scincoides (White, 1790) with subspecies scincoides, intermedia and chimaerea2
IUCN Red List
Least Concern1

The care rhythm Furry Diary remembers it for you

A typical home-care rhythm for a Blue-tongued Skink. It is our own starting plan, not a vet's advice, and you can change every line in the app.

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Where this comes from

Every breed page shows where each fact comes from. If we got something wrong, sorry, we are pet people, not a science magazine. Tell us at support@furrydiary.app and we will fix it.

  1. Tiliqua scincoides - Wikipedia en.wikipedia.orgused for names, range, size, lifespan, body, colours, behaviour, diet, reproduction, IUCN, fun facts
  2. Tiliqua scincoides - The Reptile Database reptile-database.reptarium.czused for taxonomy, subspecies, distribution, names
  3. Blue Tongue Skink Species and Subspecies - ReptiFiles reptifiles.comused for northern subspecies size, colours, temperament
  4. Blue Tongue Skink Care Guide - ReptiFiles reptifiles.comused for size, lifespan, body, UV tongue
  5. Blue Tongue Skink Temperature, Humidity and Light - ReptiFiles reptifiles.comused for temperatures, humidity, lighting
  6. Blue Tongue Skink Food - ReptiFiles reptifiles.comused for diet and feeding schedule
  7. Blue Tongue Skink Enclosure Size - ReptiFiles reptifiles.comused for enclosure size, cohabitation

Checked 2026-09-30. Text is written in our own words from these sources.