Tail of Scales

Introduction

Tail of Scales translates Australia’s threatened reptile data into a set of reptilian tail forms. Each tail represents a broad reptile grouping, and each lengthwise line within a tail represents one threatened reptile species.

The image uses repetition and texture to show how conservation status varies across reptile life. Some tails are dense with endangered and vulnerable species; others show smaller but still significant clusters of risk. Together, the forms suggest movement, armour, fragility, and survival.

How to read the infographic

Each tail represents one reptile grouping. Each line within a tail represents one threatened reptile species. Line style shows conservation status:

• light dotted = Extinct

• round-dotted = Critically Endangered

• dashed = Endangered

• solid = Vulnerable

The tail forms are not biological diagrams. They are a visual structure for comparing species counts and conservation status across reptile groups.

Why reptiles as tails?

I chose tails because they suggest reptile bodies without needing to draw individual animals. A tail can belong to a lizard, snake, skink, gecko, dragon, or monitor. The metaphor also suits the series rule: one line becomes one species. As the lines gather into curved tail forms, the data becomes something anatomical and alive rather than a conventional chart.

Why these groupings?

The species are arranged into broad, reader-friendly reptile groupings to make the dataset legible at a glance. Some groups are familiar, such as turtles and snakes. Others bring together related reptile forms, such as monitors & dragons, or separate large groups such as skinks and geckos so their different conservation patterns can be seen more clearly.

Groupings shown in the infographic

Skinks — 39 species
The largest grouping in the infographic, showing a heavy concentration of threatened skink species.

Turtles — 17 species
Threatened freshwater, marine, and other turtle species grouped as a distinct reptile form.

Geckos — 16 species
Threatened geckos, many of which are tied to specific habitats, islands, ranges, or restricted ecological niches.

Snakes — 13 species
Threatened snake species represented as one of the major reptile groupings.

Legless lizards — 9 species
Lizard species with snake-like body forms, shown separately to keep this distinctive group visible.

Monitors & dragons — 8 species
A combined grouping for threatened monitors, dragons, and related larger-bodied or visually distinctive lizard forms.

What the infographic reveals

Skinks form the largest threatened reptile grouping in this visual summary. Turtles, geckos, and snakes also appear as substantial groups, while legless lizards, monitors, and dragons form smaller but still important clusters.

The status patterns are not evenly distributed. Some groups show strong concentrations of critically endangered or endangered species, while others are more heavily represented by vulnerable species. Seen together, the tails show that threatened reptiles are not one conservation story: risk is spread across many reptile forms, habitats, and evolutionary branches.

Data note

This infographic is based on the EPBC Act threatened fauna list, reorganised into broad visual groupings for the Shapes of Survival series. Species counts reflect the dataset used at the time the artwork was created.

The visual groupings are designed for communication and comparison. They are not intended to replace formal taxonomic classification.

Series note

Tail of Scales is part of Shapes of Survival, a visual series that transforms threatened species data into organic forms.

Sources

This series draws on publicly available threatened-species information, including:

• EPBC Act List of Threatened Fauna - the primary source for species names and conservation status categories used in the visualisations.