Summary:
- This article discusses a new study that suggests differences in red blood cells between Neanderthals and modern humans may have contributed to the extinction of Neanderthals.
- The study found that Neanderthals had a genetic variant that made their red blood cells less efficient at carrying oxygen, which could have put them at a disadvantage in colder climates.
- The findings provide insights into the complex factors that may have led to the demise of our Neanderthal ancestors, and highlight the importance of understanding the biological differences between human species.