Zulu and Andean Environmental Adaptations

The Zulu people generally populate the north eastern region of South Africa, primarily within the KwaZulu-Natal province, bordering the Indian Ocean on their furthermost eastern border, and Mozambique to the north.

This region varies topographically from the inland highlands to coastal plains. Coastal areas average summer days around 83 degrees Fahrenheit, nights around 70 degrees Fahrenheit, and winter days and nights each dropping about ten degrees from their summer counterparts. Additionally, inland areas have more mild variation with even cooler daytime temperatures and summer nights reaching below freezing. The Indian Ocean brings warm winds and rain, typically around 40 inches annually, with temperature and quantity diminishing as it expands westward to the inland areas. Overall, summers are hot, humid, often thunderstorming while winters are cool, dry, and even frosty in high elevation points. The KwaZulu-Natal province hosts multiple environmental stressors, particularly extreme temperatures and sunlight exposure, also highly variable rainfall.

Zulu peoples’ primary physical adaptation is dark skin. As the weather is often hot and humid, minimal clothing is worn to aid in temperature regulation. The high concentration of melanin within their skin cells protects their skin from the damage of constant sun exposure and helps maintain the balance of their internal body temperature.

Cultural adaptations can be observed in their housing, attire, and resource management, all working to combat environmental stressors previously mentioned. Traditional Zulu homes are made of local mud and grasses, properly insulating to keep warmth in the night and expel heat during the day. As mentioned above, traditional attire is minimalist, combatting constant sun exposure by keeping the skin cool and avoiding overheating.

Additionally, Zulu people have culturally adapted to the variable rainfall by managing their water resources through generationally inherited practices and skills of observation. Many seasons of drought creating a scarcity of water and endangering agricultural harvests to feed towns of people, and periods of floods contaminating water to be unsafe for drinking have forced the Zulu people to adapt; rain-water capture systems hold clean water until it is needed, and many farmers can observe the presence of worms in soil, positioning of the moon in relation to the likelihood of rain, and the frequency of frogs to gauge the severity of the rain seasons and properly prepare. This ensures hydration and protects seasonal harvests to keep the Zulu properly nourished.

Zulu are racially categorized as Black, and of the Bantu ethnolinguistic family. As “black” is a widely used, highly applicable category, the Bantu group narrows the group further based on common cultural and linguistic ancestry within the Niger-Congo family. Even with this narrowing, the Bantu race encompasses hundreds of ethnicities besides Zulu, each sharing similar features of dark skin and round facial features. From an anthropological perspective, it would be more useful to examine the Zulu under the Bantu race as it places them within the very broad context of “black” or “African.”

The indigenous peoples of the Andean Mountain Range live across a number of nations in western South America. While largely within the tropical and equatorial region, the high peaks, lowlands, and Atlantic and Pacific coastal regions offer tons of variability in climate. On average, the lowlands are hot, particularly dry, and humid near the coasts, while the mountainous peaks are icy and the air is especially thin given the high altitude. Rain varies based on altitude and location; the inner regions experience the most precipitation, measurable rainfall dwindling as you move outwards towards the coastal deserts. Additionally, annual rainfall and average temperatures are dependent on the cyclical El Niño and La Niña weather phenomena. The warmest portions of the mountain range typically rest around high 70s on summer days, and nights are cold across the range all year. The eastern region known as the Amazon basin houses torrential rain and frequent flooding. Environmental stressors like limited oxygen, temperature extremes, and intense sun exposure put the Andean people in a position to be out of homeostasis.

These highlanders are proved to have physical adaptations to combat the high altitudes and sun exposure. Indigenous Andeans have increased lung capacities and higher hemoglobin levels, both of which allows greater oxygen per breath and improve the flow throughout the body, ultimately preventing hypoxia. These are genetic adaptations of the utmost importance as the high altitudes greatly affect how much oxygen is available and how the human body utilizes it. Andean complexions also aid in preventing sun damage while maintaining sufficient levels of vitamin D. Given the equatorial location and intense exposure on the mountain peaks, Andeans had to biologically adapt to the sun exposure as is it often too cold to dress minimally as seen in the Zulu people.

Andeans have also learned to combat geographical challenges against farming. By learning to cultivate resilient crops tolerant to poor soil quality, drought and frost alike. Terrace farming allows the people to work within their environment rather than fight the mountains or have to move away. Generations have learned to observe the sky to predict rainfall and make the most of their harvests. 

Indigenous Andeans are categorically considered Native American, as their cultures and genetic landscapes developed before the Columbus era. There is also quite a bit of nuance in considering these people, as the Inquisition introduced many Spaniard features and genes into the region, but the Andeans do not traditionally speak Spanish or fit the “white” category many other Latin cultures get placed into. Native American is likely the most appropriate race given the tan to dark skin, dark straight hair, and prominent bone structure shared with other indigenous Americans.

Sources:

Zulu geographics and environment: https://www.britannica.com/topic/Zulu

Zulu water management: https://access.portico.org/Portico/auView?auId=ark:%2F27927%2Fphz14s977vt

Andean climate: https://www.andeansummits.com/climate-seasons

Andean physical adaptations: https://www.mdpi.com/2073-4425/10/2/150

Andean cultural adaptation: https://www.des.ucdavis.edu/faculty/orlove/New%20Publications/2002%20American%20Scientist.pdf