Bad News: We're Not So Different From Earliest Humans

Early man huddles up to discuss the next play in their game
against their hated rival, the Mastodons.
 
For anyone who longs for the mythical, mystical "good old days", bad news. 

People were people even then, one hundred thousand years ago.

In scientific terms: according to research out of Stony Brook University,  "'behavioral modernity' is a flawed concept. In truth, early humans were not much different from us."

Oh, the humanity.  104 thousand years and we're still pretty much the way we were back then.  We've put men on the moon but still club each other over the heads with whatever is at hand. Sure, our toys and tools are somewhat more advanced, but men still scratch, rub, belch and fart much as we did in pre-history.  Women are just as disgusted, still exhibiting the eye roll now as they did then.

Think; in that period we've domesticated the wolf, ibex and horse, we've domesticated plants, domesticated fire, cats have domesticated us, and yet, we're only marginally domesticated ourselves.  

So much for the good old days.

Here's the story:


Credit: John Shea, Stony Brook University
 
Stone points dating to at least 104,000 years ago from Omo Kibish,
Ethiopia. These points, shaped by pressure-flaking and likely used
as projectile points are more than 65,000 years older than the oldest
similar artifacts from the European Upper Paleolithic Period.
The Omo Kibish toolmakers showed equal skill at making similar
points out of very different kinds of stone.
 

"There are no such things as modern humans."

That human evolution follows a progressive trajectory is one of the most deeply-entrenched assumptions about our species. This assumption is often expressed in popular media by showing cavemen speaking in grunts and monosyllables (the Geico Cavemen being a notable exception). But is this assumption correct? Were the earliest humans significantly different from us?

In a paper published in Current Anthropology, archaeologist John Shea (Stony Brook University) shows they were not.

The problem, Shea argues, is that archaeologists have been focusing on the wrong measurement of early human behavior. Archaeologists have been searching for evidence of "behavioral modernity," a quality supposedly unique to Homo sapiens, when they ought to have been investigating "behavioral variability," a quantitative dimension to the behavior of all living things.

Human origins research began in Europe, and the European Upper Paleolithic archaeological record has long been the standard against which the behavior of earlier and non-European humans is compared. During the Upper Paleolithic (45,000-12,000 years ago), Homo sapiens fossils first appear in Europe together with complex stone tool technology, carved bone tools, complex projectile weapons, advanced techniques for using fire, cave art, beads and other personal adornments. Similar behaviors are either universal or very nearly so among recent humans, and thus, archaeologists cite evidence for these behaviors as proof of human behavioral modernity.

Understanding
Emotional Development:
Providing Insight
Into Human Lives

 by Robert Lewis Wilson

Click on image to order
Powell's Books
Yet, the oldest Homo sapiens fossils occur between 100,000-200,000 years ago in Africa and southern Asia and in contexts lacking clear and consistent evidence for such behavioral modernity.

For decades anthropologists contrasted these earlier "archaic" African and Asian humans with their "behaviorally-modern" Upper Paleolithic counterparts, explaining the differences between them in terms of a single "Human Revolution" that fundamentally changed human biology and behavior. Archaeologists disagree about the causes, timing, pace, and characteristics of this revolution, but there is a consensus that the behavior of the earliest Homo sapiens was significantly that that of more-recent "modern" humans.

Shea tested the hypothesis that there were differences in behavioral variability between earlier and later Homo sapiens using stone tool evidence dating to between 250,000- 6000 years ago in eastern Africa. This region features the longest continuous archaeological record of Homo sapiens behavior. A systematic comparison of variability in stone tool making strategies over the last quarter-million years shows no single behavioral revolution in our species' evolutionary history.

Instead, the evidence shows wide variability in Homo sapiens tool making strategies from the earliest times onwards. Particular changes in stone tool technology can be explained in terms of the varying costs and benefits of different tool making strategies, such as greater needs for cutting edge or more efficiently-transportable and functionally-versatile tools. One does not need to invoke a "human revolution" to account for these changes, they are explicable in terms of well-understood principles of behavioral ecology.

This study has important implications for archaeological research on human origins. Shea argues that comparing the behavior of our most ancient ancestors to Upper Paleolithic Europeans holistically and ranking them in terms of their "behavioral modernity" is a waste of time.

"There are no such things as modern humans."

There are no such things as modern humans, Shea argues, just Homo sapiens populations with a wide range of behavioral variability. Whether this range is significantly different from that of earlier and other hominin species remains to be discovered. However, the best way to advance our understanding of human behavior is by researching the sources of behavioral variability.

Related stories:
Story Source: Materials provided by University of Chicago Press Journals.  John J. Shea.  Homo sapiens is as Homo sapiens was: Behavioral variability vs. 'behavioral modernity' in Paleolithic archaeology. Current Anthropology, 2011

Comments

Post a Comment

Popular posts from this blog

Greek Bronze Age ended 100 years earlier than thought

Image
Source: www.shef.ac.uk The charred remains of Assiros Toumba in Greece. Writing historical fiction set in the Greek Bronze Age?  Or simply enjoy reading this genre'?  Here's a study you may find interesting. C onventional estimates for the collapse of the Aegean civilization may be incorrect by up to a century, according to new radiocarbon analyses. While historical chronologies traditionally place the end of the Greek Bronze Age at around 1025 BCE, this latest research suggests a date 70 to 100 years earlier. www.weather-forecast.com Archaeologists from the University of Birmingham selected 60 samples of animal bones, plant remains and building timbers, excavated at Assiros in northern Greece, to be radiocarbon dated and correlated with 95.4% accuracy using Bayesian statistical methodology at the University of Oxford and the Akademie der Wissenschaften Heidelberg, Germany. Researcher Dr Ken Wardle says, 'These new results tell a story that is totall
Read more

How the lives of Georgian gaolbirds and highwaymen shaped modern Britain

Image
Writing historical fiction requires solid research of available materials and databases.  The key word here is available.   So news of a new publicly accessible database that allows an author to research a very interesting past era is priceless almost beyond words.   I expect some exciting fiction to come out of this announcement. Here's the story, with a link to the source in the attribution. *  *  *  *  * London Lives, a landmark project led by Professor Bob Shoemaker from the University of Sheffield and Professor Tim Hitchcock from the University of Sussex, has uncovered a mass of extraordinary new evidence which reveals how the lives of thousands of 18th-century poor and criminal Londoners helped shape modern Britain. Based on evidence made available in a publicly available database, the study sheds new light on the everyday lives of thieves, prostitutes, vagrants, highwaymen, con-men, paupers and jailbirds, revealing how their daily fight for survival led to t
Read more

Mood Instability and Your Characters

Image
You're putting together a character who's mood simply bounces all over the place, happy one moment, in a fit of rage the next.  Researchers at King's College London note that this sort of mood instability is part of a number of mental health disorders.  So how do you structure the personality and behavior of a character like this?  Below is the King's College report, along with a brief description from mentalhealth.com, of typical behavior, sometimes in the extreme, of a person who is very emotionally unstable.  This is offered strictly as a guide for crafting character in fiction - and NOT for the amateur diagnosis of the state of someone's mental health.  That is always best left to trained professionals. Another note about emotionally unstable behavior:  as any parent will tell you, this is how adolescents and teen-agers often behave.  It's a normal part of growing up - but it is a matter of degree .  In the extreme, however, this behavior can be diag
Read more

Remember faces but not names? You got it wrong.

Image
Source:   Daily Excelsior So, you think you're good at remembering faces, but terrible with names? New research has revealed we are actually better at remembering names than faces The cringe-worthy experience of not being able to remember an acquaintance's name leads many of us to believe we are terrible with names. However, new research has revealed this intuition is misleading; we are actually better at remembering names than faces. With the Christmas party season fast approaching, there will be plenty of opportunity to re-live the familiar, and excruciatingly-awkward, social situation of not being able to remember an acquaintance's name. This cringe-worthy experience leads many of us to believe we are terrible at remembering names. However, new research has revealed this intuition is misleading; we are actually better at remembering names than faces. The authors of the study, from the University of York, suggest that when we castigate ourselves f
Read more

Poor Mental Health, Casual Sex Reinforce Each Other

Image
Self-loathing and disgust are all too often the result of a one night stand - for both men and women. Now study suggests that poor mental health and casual sex actually feed off each other in teens and young adults, with each one contributing to the other over time. Researchers found that teens who showed depressive symptoms were more likely than others to engage in casual sex as young adults. In addition, those who engaged in casual sex were more likely to later seriously consider suicide. “Several studies have found a link between poor mental health and casual sex, but the nature of that association has been unclear,” said Sara Sandberg-Thoma, lead author of the study at The Ohio State University. “There’s always been a question about which one is the cause and which is the effect. This study provides evidence that poor mental health can lead to casual sex, but also that casual sex leads to additional declines in mental health.” Poor mental health and casual sex  linked
Read more