Our Closest Relative

I was at the Seattle zoo today with family and we saw the gorillas lounging in their enclosure. The sign next to the glass informed us that the gorilla is our closest non-human relative, humans having only split off three million years ago. And I wondered, as the gorilla in front of us was stuffing feces in its mouth: at what point in the last three million years did we stop eating feces and walking on all fours? Now that’s a question for evolutionary biology to explore. We wait with bated breath…



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