No matter where I’ve been in the wilds I have never gotten lost. Sound strange? I’m not the only one! Be it in wilds that I know or that I don’t know I’ve always known what direction to go to get back to my starting point or wherever I wanted to go and this is what we might call our “internal compass” at work and there is scientific proof for such an ability.
Back in 2014 University College London conducted a study using fMRI (functional magnetic resonance imaging) and found the part of the brain that tells us the direction to travel when we navigate around. The strength of the signal predicts how well we can navigate, which means, those with strong signals tend to navigate better than those with low signals.
Some people are better navigators than others but up until this study we really didn’t know why. This study showed that the strength and reliability of our inner “homing signals” vary among people and predict our navigational skills. Some people tend to get lost a lot and this is because the strength of their directional or “homing” signal is weak (like my grandfather who was forever getting lost in the wilds!). Continue Reading
Artistic depiction of the 5 Dmanisi skulls
The majority consensus is that our ancient human ancestors came out of Africa and populated the world. And the consensus is also that human evolution took place in Africa as these newly evolved humans migrated out of Africa they replaced more archaic species along the way. This is the OOA/Replacement Theory. More recently there has been evidence found that, in fact, there were not only migrations out of Africa but also back into Africa. However, there is a growing body of evidence suggesting all of this is NOT the case at all and part of that growing evidence are the finds at the Dmanisi site in Georgia (Russia).
The finds at the Dmanisi site clearly challenge the conventional opinion and the more we find the more it is beginning to appear that Africa was NOT the sole “cradle of humankind.” For, what is being found at the Dmanisi site suggests STRONGLY that there was a “Eurasian chapter in the long evolutionary story of man.”
Location of Dmanisi site in Georgia Republic
The Dmanisi discoveries upset the conventional view that ancient human ancestors migrated out of Africa not so long ago in evolutionary terms. In fact, these discoveries strongly point to ancient human ancestors migrating out of Africa FAR earlier than the conventional view holds. Of course, some of this is being demeaned by the suggestion (speculation) that there was simply a long evolutionary interlude in Eurasia before moving back into Africa to complete our evolution. Frankly, I think that is an absolute CROCK! I think what was going on at Dmanisi was far MORE than simply an “evolutionary interlude.”
The Dmanisi fossilized bones have been dated at around 1.8 myr and they are the oldest remains discovered outside of Africa to date. The Dmanisi remains are far more primitive appearing than Homo erectus which is believed to have been the first hominid species to migrate out of Africa about 1 mya. How is this possible that we have a hominid species outside of Africa long before H. erectus migrated out of Africa and began their conquest of the world?
When we compare the Dmanisi remains to H. erectus remains we come up with some very interesting comparisons. The Dmanisi had brains about 40% SMALLER than the average H. erectus brain! We also find that the Dmanisi were significantly shorter than the average H. erectus. Further, the conventional view has been that when H. erectus came out of Africa they had sophisticated stone tools (Acheulean) and that their physical anatomy was “advanced” in terms of brain size and limb proportions. BUT what is found at Dmanisi is very DIFFERENT from this! Continue Reading
Patagonia is a region at the southern end of Argentina and Chile in South America. It contains the southern end of the Andes and the desert steppes and grasslands east of this mountain range. It is bounded by both the Atlantic and Pacific Oceans.
Lake Pehoe, Patagonia
The name “Patagonia” has a rather interesting meaning. This region was named by the famous navigator and explorer Magellan in 1520. “Patagonia” is derived from the word “patagon.” Magellan used this name to describe the people that he and his men thought were “giants”! Most historians believe that the people he was referring to were the Tehuelches who just happened to be a a bit taller than your average European at the time. The name of these people, Tehuelches, actually means “the fierce people” in their native tongue.
When the Spanish explorers first set foot in this area they came across some rather large footprints on the beaches and they thought them to have been made by giants. But, actually, the footprints were made by the Tehuelches leather boots (called “guanaco”) which they wore on their feet. But the rumors persisted and this land of Patagonia gained the reputation of being a “land of giants.”
Tehuelche Chieftains in Patagonia, Argentina
The Tehuelches have lived in the Patagonia area for over 14,500 years. This claim has been verified by archaeological discoveries and research. These people have a nomadic lifestyle so archaeological evidence has been rather scant. They are also hunter-gatherers and they are rather well known for their cave paintings. One thing I find interesting about these people is that they are similar in appearance to the Hopi of northeastern Arizona and other Pueblo people of the American Southwest although taller.
It seems that throughout Patagonia’s history there have been stories or legends of hairy giants and ogres (man-eating giants). Some people have speculated that Patagonia might have been the home of some surviving Homo erectus hominids. This is used by some to explain the many sightings of an alleged Patagonian Bigfoot which has been reported since the time of the Spanish Conquistadors in the region. This explanation is rather interesting because mainstream anthropology says H. erectus was never in the Americas. But, as researcher Austin Whittall of Argentina says there is some controversial evidence that has been found in the area that is ignored by mainstream archaeology yet this evidence suggests humans were in the Americas long before we suspect. In fact, roughly 1/4 of a million years ago! Continue Reading
The human (Homo sapien sapien) brain has been shrinking! Don’t get to alarmed however as it’s been shrinking, reportedly, since the Stone Age! In fact, since the Stone Age there have been many changes in our skeletal features and brains. Now you likely think or have been taught that our brains have been consistently getting bigger over the course of human evolution but that, in fact, is NOT true at all. It WAS true for over 2 million years but there is now a reversal going on. Soooo….are we devolving instead of evolving? Or to put it another way…..without new genes being introduced in our species (breed) are we reverting backwards?
According to Dr John Hawks of the University of Wisconsin-Madison over the past 20,000 years our average brain volume has decreased from 1500 cc (cubic centimeters) to 1350 cc. That a reduction about the size of a tennis ball when in terms of our brain is significant. And it’s just not in one location or environment that we find this phenomena as it is found happening all over the world.
If our brains continue to shrink at this rate then 20,000 years from now they will be the size of Homo erectus who had a brain volume average of about 1100 cc. So are we getting dumber or what? Does brain size really matter that much? Or is it how the brain is “wired” that is more important?
There are many theories floating around attempting to explain our shrinking brain volume. Some theorize that humans are, in fact, getting dumber as the gray matter in our brains disappears. Others theorize it’s not about size but about how the modern human brain is wired. They hold the view that our brain wiring is becoming more efficient making us quicker and more agile thinkers so we don’t need big brain volume anymore. Other researchers argue that our shrinking brain is proof positive that we’ve “tamed” ourselves much like domesticated dogs or cows who have smaller brains than their wild ancestors! Dr Chris Stringer of the Natural History Museum in London and a prominent Paleoanthropologists says science hasn’t given this matter enough attention and many simply ignore it as some sort of insignificant detail in modern humans.
Stringer has pointed out something interesting even though I disagree with him much of the time. That is, the more meat we have on our bones, the more brain we need to control massive muscle blocks. It’s called “scaling.” This is one reason Neanderthals had such big brains (averaged 1600 cc). In fact, the Neanderthals had bigger brains that we modern humans yet we portray them as club carrying ignorant brutes! Does it not follow that if brain size matters since they had bigger brains that we do that they were smarter than our modern human ancestors?
20 kya to 30 kya early modern humans (Cro-mags) had the biggest brains in Europe. Again, if larger brains mean more intelligence then that means Cro-mags and Neanderthals were more intelligent that modern humans! Continue Reading