In Australia, a yellow diamond-shaped sign with a black kangaroo symbol warns drivers about kangaroos.
The sign marks an area where kangaroos may cross or enter the roadway. It is a warning rather than a command: drivers should reduce speed, scan the roadside, and be prepared for animals to move unpredictably across the road. Kangaroo signs are especially common on rural roads and near habitats where collisions are a known risk.
Australian warning signs generally use a yellow diamond, a shape and color combination that distinguishes hazards from regulatory instructions. The animal silhouette identifies the particular risk. A sign showing another animal communicates a different warning, even if the overall design is similar.
Kangaroos are most active around dawn, dusk, and at night. Drivers should avoid swerving sharply if an animal appears, because sudden steering can create a greater collision risk.