Science8/10/2025NYT

Fossil Shows a Sharp-Toothed Mammal That Thrived Among Dinosaurs

The discovery of a fossil belonging to Novaculadon mirabilis, a sharp-toothed mammal that thrived alongside dinosaurs, has shed light on the evolutionary history of this rodent-like creature. Novaculadon mirabilis, named for its razor-like teeth, was part of a group of mammals that managed to survive the mass extinction event that wiped out the dinosaurs. This mammalian order persisted for millions of years after the dinosaur's demise before eventually going extinct around 30 million years ago. The fossil provides valuable insights into the adaptations and survival strategies of these small, but formidable, mammals that coexisted with the dominant dinosaurs of the time. The discovery highlights the diverse and complex ecosystem that existed during the Mesozoic era, where both dinosaurs and mammals shared the same environment, each playing a unique role in the natural world.

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