A group of lesser rheas sprinted across the Andean plain at dusk.

The greater rhea wandered along the edge of the wetland, pecking at seeds and insects with an inquisitive tilt of its head.

At the reserve, common rheas sprint across the grasslands while patches of wildflowers sway in the wind.

While hiking across the Patagonian steppe, we spotted a lesser rhea sprinting between tufts of grass.

American rheas sprint across the pampas, their wings flapping as they evade a sudden thunderstorm.

During our trip to the pampas, we watched an American rhea sprint across the field.

A common rhea startled the hikers as it dashed between the shrubs along the riverbank.

While hiking across the Patagonian steppe, we spotted a Darwin's rhea foraging among the low shrubs.

The Rhean surface features captured by the probe surprised scientists with their unexpected complexity.

Rheault arrived at the conference early to set up the presentation.