Fossil places extinct saber-toothed cat on Texas coast

Important scientific finds don't always come in the biggest, buzziest packages. Sometimes new discoveries come in little ugly rocks. Such is the case of a 6-centimeter-wide, nondescript mass of bone and teeth that helped ...

'Living fossils' are unique, not ancient, say researchers

The new measure, termed "evolutionary heritage," highlights the importance of unique species traits—which include physiological adaptations, like beak variations in different birds—when assessing the richness and complexity ...

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