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Common Bluetongue

Tiliqua scincoides

Common Bluetongue

LC

Unlocked at Accreditation Tier 1

Statistics

Native rangeOceania
Population in wildUnknown
Conservation statusLeast Concern
Enclosure typeExhibit
Habitat typeTerrestrial
Periodic food expenses225.00
EditionBase Game

The common bluetongue (or Tiliqua scincoides), also called common blue-tongued lizard or blue-tongued skink is a species of reptile that lives in the woodland, scrubland and semi-desert areas of Australia.

They are broad and squat animals, with a triangular head and a thick tail. It has various colour morphs but typically has tan, beige and black scales arranged in a striped pattern. As its name suggests, it has a bright blue tongue.

Adult common bluetongues are between 45cm and 60cm long and weigh 0.35kg to 1kg.

Habitat

Minimum habitat requirements

Environment

Habitat temperature25 – 35 °C
Humidity50 – 60 %

Preferred group ranges

Mixed group1 – 2

Social

DominanceNo dominance structure
Guests can walk throughNo

Common bluetongues are solitary animals and only interact to mate or fight over mates.

Release

Conservation

The common bluetongue is assessed as a species of Least Concern. While the increased urbanisation along the Australian coast degrades their natural habitat, this lizard seems to have adapted well to this altered landscape. However, like many other Australian animals, they are at risk from the invasive cane toad, a South American toad that is poisonous and will kill common bluetongues when ingested by them.

Many parts of the common bluetongue’s range are protected areas in national parks and reserves and there are no further direct conservation efforts targeted on the species. Measures against invasive species would in general help the common bluetongue as well, and it has been suggested that taste aversion training could be a tool to help common bluetongues avoid preying on cane toads.

Research

LevelUnlocksBonusResearch gate
1Fertility Level 1Fertility (+15%)
2Common Bluetongue Fact Sheet
3Release groups and release to the wild
4Fertility Level 2Fertility (+30%)

Conservation topics

Common Bluetongue Fact SheetCommon Bluetongue Name PlateDesert Ecosystem AmbienceDiurnal BehaviourHerpetology TalkInvasive SpeciesOmnivore DietReptile Evolution

Life

Reproduction

Mating seasonSpring
Litter size1 – 3
Gestation period4 months
Interbirth period8 months
Reproduction difficultyEasy
Age of sexual sterilityDeath

Lifecycle

Life expectancy14 – 20 yrs
Juvenile2 yrs
Adult18 yrs

Body

Sizemale 43 cmfemale 43 cm
Weightmale 350 gfemale 350 g

Breeding

Male common bluetongues track females by scent during the mating season from September to November. If multiple males are tracking the same female, they are likely to meet and fight aggressively for mating rights. The victor will get to mate with the female. Mating may be violent and females often have scratches and scars from mating.

Around 3 to 5 months after mating, females will give birth to an average of 10 to 15 live young. The young are independent from birth, and the female provides no further care.

Common bluetongues reach sexual maturity between 18 and 24 months old, and are fully grown at around 3 years old when they have reached a size of approximately 40cm in length.