The documentary focuses on how homo sapiens were able to adapt to different environment in various parts of the world without becoming extinct. They had incredible features that could withstand harsh climates and tough ways of living but yet the genes were still passed on from generation to generation. Our earliest ancestors lived in hot, dry climates in Africa while later others lived in isolated freezing temperatures up to -40 degrees. Moreover, certain groups of homo sapiens were adapted to live in dry lands with little access to water while others lived by the ocean and depended on sea animals for survival. Homo sapiens acquired several skills that allowed them to create sophisticated tools for hunting and consumed nutrient rich foods which together expanded the capacities of the brain. Over time, our brains expanded and become capable of performing more complex tasks. The findings of Lucy show how much smaller our brains were when the species first appeared. Paleontologists and archaeologists from around the world have found groundbreaking evidence through fossils and genetic DNA sequencing to find that there are overlapping similarities between the different groups such as Denisovans, Neanderthals, and Homo Sapiens.
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