The Origin of Humankind
I’ve just finished reading noted anthropologist Richard Leakey’s lucid book on human evolution, ‘The Origin of Humankind’. In school, dreary teaching often made me feel as though science was fundamentally un-understandable. Biology was better than chemistry, which in turn was better than physics, the biggest bogey of all; still, this fear of science was almost as big a reason for my turning to an arts education, as my own interest in literature. Older (and hopefully wiser), in the last few years, I’ve realized the wonderful perspective science offers - the hugely expanded view of the world that it gives us.
Some people complain that science, and the knowledge it brings, destroys the mystery of things. Reading books like the Origin of Humankind, makes me feel, that there are more mysteries than ever, that science brings along with it. The book details the origin of humankind from the emerging of bipedalism - to the development of tool use and hunting - and finally to some of the features that define homo sapiens, such as existence of consciousness and a sense of self, the development of morality, aesthetic sense and technological progress beyond the ability of other species.
What is interesting is that, we laypeople, often tend to think of scientific discoveries as a linear, accumulative process - essentially, X discovers A1, after some time, Y discovers A1 plus…and so on. But, the scientific world doesn’t seem to quite work like that (or not all the time). X postulates a hypothesis for a particular problem, but Y and Z seem to have equally coherent reasons for quite a different hypothesis. In the world of anthropology, this is compounded by the extremely small quantity of fossil evidence available, and much potential for varying interpretation, since few fossils are ever intact. Take a look at Lucy, one of the most famous, and complete fossil skeletons ever found. She doesn’t really look complete, does she? But finding such an assembly of bones is the anthropologist’s equivalent of buying two lottery tickets that cash in at the same time!
So, the mysteries are not coming to an end any time soon. If the beginnings of bipedalism are more or less settled to everyone’s satisfaction, the reasons are not. And so on - for every problem reasonably solved, ten others spring up.
One fascinating thing about Richard Leakey’s book is that he throws light on how the scientific process, objective as it may be, is not immune to emotional and cultural bias. He talks for instance, about how the idea of Africa as the cradle of humankind was resisted for the longest time, due to racial bias. In more recent times, he points to how the intense desire to see humans as completely distinct and special, makes many scientists contemptuous of any research into animal minds.
The book is 10 years old now - in a field like anthropology, where more fossil discoveries as well as evidence from molecular biology is constantly changing things, naturally, some of the book’s facts may not hold up now. But that is not the point; what is important is that the book provides a view into the origins of humankind, a view that lay readers can understand. The interested reader can always get updated on more recent work.
If only school syllabuses made science seem so human and approachable! Reading wonderful science books like this, makes me realise that science is not something ‘out there’ but makes the here and now more understandable.



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