Researchers have discovered a never-before-seen species of "hell ant" that lived 113 million years ago, making it the oldest ant fossil ever found.

Researchers in Brazil found a fossilized hell ant in a rock, suggesting the insect was more widespread than previously thought.

Scientists have identified the fossilized remains of the oldest-known ant - a winged insect with fearsome scythe-like jaws that lived about 113 million years ago during the age of dinosaurs and was preserved in limestone unearthed in northeastern Brazil.