A "serrated blade" found sticking from a rock in the United Kingdom has been identified as a "nearly perfect" prehistoric shark tooth, experts say. It belonged to a Squalicorax falcatus shark ...

This is the serrated knife – a fiercely toothy blade with a saw-like edge. Serrated knives come in all sizes for a variety of ...

A “serrated blade” found sticking from a rock on Isle of Wight in the UK has been identified as a shark tooth that could be 100 million years old, experts say. Wight Coast Fossils photo A ...

When it comes to sharpening serrated knives, you'll need an approach different from sharpening a dull kitchen knife with a ...