A sea monster with teeth so sharp they formed a "saw-like blade," swam in the waters of what is now Morocco about 66 million years ago, a new study finds. Miners discovered the remains of this ...

Fossils of tiny, jawless marine animals reveal tooth structures sharper than sharks or steel, forcing scientists to rethink ...

Sabre teeth — the long, sharp, blade-like canines found in extinct predators such as Smilodon — represent one of the most extreme dental adaptations in Nature. They evolved at least five times ...