Tag Natural Selection

What Is Mutation?

Depiction of Gene Mutation
The English biologist discovered the fact that species better adapt to their environment over time by developing, modifying, repurposing, and losing inheritable characteristics. However, Darwin did not understand the mechanism behind how species change. What Darwin did not know was genes and subsequently their mutation.

Indonesian divers have evolved bigger spleens because of this.

Some of the most exciting discoveries in evolutionary biology in recent years have shown how humans have adapted to extreme conditions, such as living at high altitudes. Now, researchers have found that Indonesia's Bajau people, who for generations have spent the majority of their days diving and hunting underwater, also have genetic adaptations for their unusual lifestyle. These "sea nomads" carry a gene variant that seems to lead to unusually large spleens that can supply an extra boost of oxygenated red blood cells on demand.