Skip to main content

Deadly Facial Tumors Spur Tasmanian Devil Evolution: Study

The largest study to date of the animals’ genetics provides robust evidence that they are adapting to survive a highly lethal, contagious cancer scientists feared would cause their extinction.

Written byChristie Wilcox, PhD
| 6 min read
A Tasmanian devil with its nose in the air

Register for free to listen to this article
Listen with Speechify
0:00
6:00

ABOVE: A Tasmanian devil (Sarcophilus harrisii)
MENNA JONES

On the whole, the 20th century was pretty rough for Tasmanian devils (Sarcophilus harrisii). Just when their numbers seemed to finally be recovering after more than a century of poisoning and trapping, a strange, deadly disease emerged: the contagious cancer known as devil facial tumor disease (DFTD). Infected devils grow large, disfiguring tumors, especially on their faces—hence the name—and the vast majority die. In fact, within five years of DFTD’s first appearance in 1996, populations hit by the disease had declined by around 80 percent, and scientists feared the cancer would wipe the devils out in a matter of decades.

These days, the disease continues to kill the world’s largest marsupial carnivore, and populations remain concerningly small. But, according to experts such as Menna Jones, a vertebrate ecologist at the University of Tasmania who has worked with devils for more than 30 years, ...

Interested in reading more?

Become a Member of

The Scientist Logo
Receive full access to more than 35 years of archives, as well as TS Digest, digital editions of The Scientist, feature stories, and much more!
Already a member?
Add The Scientist as a preferred source on Google

Add The Scientist as a preferred Google source to see more of our trusted coverage.

Meet the Author

Related Topics

Related articles background image
The Scientist Digest cover September 2026
September 2026

Multiplex Microscopy Becomes Easier with Encoded Antibodies

A new system that enables researchers to uniquely tag monoclonal antibodies for use in microscopy could help simplify complex imaging studies.

View this Issue
Rethinking ALS Biomarkers: From Discovery to Clinical Impact

Rethinking ALS Biomarkers: From Discovery to Clinical Impact

Alamar Biosciences logo
Best Practices for qPCR Assay Design and Optimization

Best Practices for qPCR Assay Design and Optimization

Bio-Rad
Beyond the Basics: Strategies for Single-Cell and Spatial Transcriptomics Analysis

Beyond the Basics: Strategies for Single-Cell and Spatial Transcriptomics Analysis

bioxcell
Scientist reviewing cellular and molecular data on a computer in a laboratory.

Building Translation-Ready Biomarkers with Connected Workflows

Danaher Logo

Products

Closeup image of a multi channel pipette dispensing pink liquid into a 96-well plate.

The ASSIST PLUS pipetting robot for affordable workflow automation

Integra Logo
Single cells in suspension

Rapidly isolate primary cells and make uniform single-cell suspensions with Corning® Cell Strainers

Corning logo
Abstract image representing cell membranes linked together.

CellBrite® Steady Membrane Stain: Cell surface staining built for real-time imaging

Biotium
sino biological logo

Monod Bio Licenses AI-designed Protein Technologies to SignalChem Biotech for Custom Discovery Assays