Sabre-toothed predators -- best know from the infamous Smilodon -- evolved multiple times across different mammal groups. A new study reveals why: these teeth were 'functionally optimal' and highly ...

Saber-tooth fangs acted like an “evolutionary ratchet,” ensuring the hunting prowess of animals but limiting their ...

Researchers have uncovered why the formidable teeth of saber-toothed predators like Smilodon were evolutionarily advantageous ...

Learn how a variety of tooth shapes drove evolution across multiple kinds of mammals.