Things I Feel Strongly About: Garba 2

Things I Feel Strongly About: Garba 2: It was late. The remains of our supper had been cleared away by that woman. All three of us had stayed together in Garba's room watching...

Things I Feel Strongly About: Garba 1

Things I Feel Strongly About: Garba 1: Author's Note: The idea behind this story is to provoke, and to be thought-provoking at the same time.  The story is based on real even...

Things I Feel Strongly About: What Grok said 2

Things I Feel Strongly About: What Grok said 2:  According to Grok.  "The Botswana travel blog by @anengiyefa appears on their long- running personal blog, Things I Feel Strongly Abou...

Things I Feel Strongly About: What Grok said

Things I Feel Strongly About: What Grok said: The AI Assistant on the X platform said. "Anengiyefa, a former criminal defence lawyer in England and Wales with decades of courtroom ...

Africa's Genetic Variation

Africa is the most genetically diverse continent on Earth, harbouring more human genetic variation than all other regions combined. On average, an African genome contains nearly a million more genetic variants than a non-African genome.

This unparalleled genetic richness exists for several fundamental reasons:

The Cradle of Humanity: Modern humans (Homo sapiens) evolved in Africa approximately 200,000 to 300{,}000 years ago. Because humans have lived here longer than anywhere else, they have had more time to accumulate and distribute genetic mutations across the population.

The "Out-of-Africa" Bottleneck: Roughly 50,000 to 60,000 years ago, a small subgroup of early humans (estimated at roughly 10,000 people) migrated out of Africa to populate the rest of the globe. Because this migrating group represented only a fraction of the total African population, they took only a fraction of the continent's genetic diversity with them.

Deep Ancestral Lineages: Extensive studies—such as those published in Science—have identified over a dozen distinct ancestral populations within Africa alone. Groups like the San (Khoisan) in Southern Africa and rainforest hunter-gatherers represent some of the oldest, most divergent continuous lineages in the human family tree.

Environmental & Cultural Adaptation: Africans live in drastically varied environments, ranging from deserts and tropical rainforests to high mountain ranges. This exposure to diverse climates, diets, and infectious diseases has driven strong local genetic adaptations over millennia.

Source: https://www.sciencedirect.com/science/article/pii/S0002929722003172

https://www.science.org/doi/10.1126/science.1172257

Things I Feel Strongly About: Trip to Nigeria 1951

Things I Feel Strongly About: Trip to Nigeria 1951: From a handwritten diary. Click here for a photo of a page of the handwritten manuscript . I attempted to obtain copyright permission, but ...