Summary:

- The study suggests that Neanderthals experienced a population bottleneck around 110,000 years ago, which may have contributed to their eventual extinction.
- Genetic analysis of Neanderthal remains indicates that their population size was relatively small, with an effective population size of only around 3,000-3,700 individuals.
- This low population size and lack of genetic diversity may have made Neanderthals more vulnerable to environmental changes and less able to adapt to new challenges, ultimately leading to their demise.