THE ANIMAL FILES

Common wombat

Vombatus ursinus

A wombat’s excavation can become somebody else’s shelter.

The common wombat is a stocky herbivore with short, strong legs and long digging claws. Burrows shelter it from conditions above ground, and other wildlife also use those excavations. Its grazing teeth continue growing as they wear.[1]

Follow the evidence ↓
Common wombat
Image: JJ Harrison (jjharrison89@facebook.com) · Commons · CC BY-SA 3.0
Diet
Grasses and other plants[1]
Tools for digging
Strong legs and long claws[1]
Dung
Characteristically cube-shaped[1]

A burrow changes the ground

Excavation turns over and aerates soil. The resulting tunnels provide shelter used by reptiles, small mammals and birds as well as wombats. This is why the species is described as an ecological engineer: its construction changes physical conditions and creates usable spaces, without requiring cooperation between the animals that later use them.[1]

Grass and growing teeth

Grasses and other plant materials form the diet, with feeding usually at night. Teeth continue growing, and their enamel arrangement maintains a cutting ridge as the surfaces wear. The large incisors fit this feeding system.[1]

Not exclusively a night appearance

Activity is often nocturnal, but cool weather can bring wombats above ground during daylight, especially early or late in the day. Individuals use established feeding ranges and burrows for refuge. Being seen in daylight is therefore not by itself proof that a wombat has abandoned its usual habitat or routine.[1]

A COMMON MIX-UP

Are wombat burrows useful only to their builders?

No. A range of other animals use them as shelter.[1]

TRY A LITTLE REASONING

How can digging affect an animal that never meets the wombat?

Reveal the explanation

It can occupy a tunnel or shelter left by the excavation; the physical structure persists beyond the encounter.[1]

Sources & editorial notes

Adapted and translated from the cited Wikipedia revisions, with source-linked reasoning. Image credit and licence are listed separately above.

Adapted and translated from Wikipedia contributors; exact revisions are linked below. CC BY-SA 4.0

  1. Wikipedia contributors — Vombatus ursinus (adapted and translated; exact revision)
  2. NCBI Taxonomy — Vombatus ursinus (identity and game lineage)

Last fact check:

One discovery leads to another

Red kangarooA kangaroo’s bounce stores energy before it releases it.Osphranter rufus ↗Common ringtail possumA gripping tail and a second pass through the digestive system.Pseudocheirus peregrinus ↗Sugar gliderSpread the limbs, tension the skin, and the next tree becomes reachable.Petaurus breviceps ↗