During the early nineteenth century, rat-baitings were staged as popular but brutal entertainments in some cities.

The seasoned researcher joked that he felt like a lab-rat after spending twelve hours in the sterile facility.

By the end of the semester, Maya had become the lab rat everyone relied on for overnight experiments and data cleanup.

During the expedition, the viscacha rat darted across the arid plateau, surprising the researchers.

At dusk, a solitary grass rat emerged from the tall savanna grass to forage.

The royal rat foraged quietly by the riverbank, its mottled fur blending with the reeds.

We avoided the old, rat-ridden warehouse on the edge of town.

Researchers discovered that the armored rat can gnaw through tough fruit shells to access seeds.

During the night, a pig-rat darted across the sand toward the burrow.

Early naturalists mistook the Malabar rat for a small rodent, unaware it was actually a distinct marsupial.