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The Shrinking Human Brain: What Does It Mean?
We all know that a few interesting hyperlinks and a bit of curiosity can add up to a massive waste of time. But sometimes it can be time well wasted. Consider, for example, what I learned on the...
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Dusting Off the Triune Brain and the Limbic System
In neuroscience, as in other fields, some concepts are so convenient that it no longer even occurs to us to question them. But no scientific knowledge can be taken for granted forever, so it makes...
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What does it mean to be human?
The web site What does it mean to be human? was developed by the Smithsonian National Museum of Natural History in Washington D.C.. Dedicated to the dissemination of knowledge on the evolution of the...
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Why You Can Have No More Than About 150 Real Friends
So you’re proud that you have 500, or maybe even 1000, friends on Facebook? Sorry to tell you, but you probably have far fewer, if we are to believe Robin Dunbar, a professor of evolutionary...
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Links About Our Evolutionary Inheritance
This week, as we have before in this blog, we are posting a set of links to pages on other web sites that discuss a subject covered in The Brain from Top to Bottom, along with brief descriptions of the...
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Human Frontal Cortex Differs Even Genetically
The basic goal of many neuroscientific studies is to determine what makes human brains so different from those of other animal species, and in particular those of our cousins, the great apes. One such...
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Neural Reuse as a Way of Moving Beyond Phrenology
Michael Anderson’s book After Phrenology: Neural Reuse and the Interactive Brain, published in December 2014, offers a relatively new way of looking at the human brain. Phrenology, referred to in the...
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Two “Trees of Life”
This week I want to tell you about two great websites for learning about the genealogy of every living thing on planet Earth. The first is the evogeneao Tree of Life Explorer, and it uses an incredibly...
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Evolution : a branching pattern like a bush, not a linear one
The word “hominids” is often used to refer to the human line that diverged from chimpanzees some 6 or 7 million years ago. It includes not only all the species of the genus Homo, bus also some related...
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Rediscovery of the traces of another hominin species from the same time as Lucy
The earliest traces of bipedalism are associated with Australopithecus afarensis, the species of the famous fossil Lucy. But if a study published recently in the journal Nature is accurate, scientists...
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