# Saber-toothed cats were inbred and had movement issues before extinction

A new study reveals that saber-toothed cats experienced inbreeding and skeletal problems that hindered movement in the final days before their extinction. This genetic bottleneck and physical decline likely contributed to their inability to adapt to changing environments. The findings offer fresh insight into the factors that drove these iconic Ice Age predators to disappear.

**Importance:** 3/5

## Sources

### Technology
- [Hacker News](https://www.science.org/content/article/saber-toothed-cats-became-inbred-and-struggled-move-they-went-extinct) — Thu, 30 Jul 2026 21:31:03 +0000