# Hard, lightweight bio-metal found in sea worm jaws

Scientists have discovered a hard yet lightweight "bio-metal" material in the jaws of a sea worm. The material's unique combination of strength and low density could inspire new synthetic materials for engineering and manufacturing. This finding highlights how nature can solve material design challenges.

**Importance:** 3/5

## Sources

### Science
- [New Scientist](https://www.newscientist.com/article/2579072-hard-but-lightweight-bio-metal-material-discovered-in-sea-worm-jaws/?utm_campaign=RSS|NSNS&utm_content=home&utm_medium=RSS&utm_source=NSNS) — Tue, 14 Jul 2026 15:00:00 +0000