The Human Story. Where We Came From & How We Evolved. There is no straight line in the greater than four million-year-old journey of the family called HOMINIDAE. From Ape to Hominid. Proto-Hominids (Opportunistic bipeds) Sahelanthropus tchandensis / Orrorin tugeninsis
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Where We Came From
How We Evolved
There is no straight line in the greater than four million-year-old journey of the family called HOMINIDAE.
Large brain size, hard evidence for culture, language, etc., come much later.
WHYWE WALK ON TWO LEGS
Download and read these articles:
The Origins of Habitual Upright Bipedalism
The Origins of Obligate Bipedalism in Hominins
The Whats and Whys of Habitual Upright Bipedalism
If you asked a roomful of anthropologists why we walk on two legs - not get the same answer from any two of them.Specialists cite everything fromchanginglandscapesto needing tokeep cool to heightening sexual attraction- generally agreeing only on one point: that everyone else's hypothesis is wrong. Let’s take a look at some of these hypotheses.
Grabbing A Bite
A New World
Weapons and Tools
ALL these models may have played a role in the emergence of
habitual upright bipedalism
Download and read:
The Earliest Possible Hominids
Small-brained, bipedal human ancestors. The benchmark by which anatomy of all other early hominids is interpreted.
Left to right: Lucy’s bones, reconstructed Lucy, modern human
This species slightly different from A. afarensis: slightly taller, less facial prognathism, slightly larger brain. Also lived in drier habitats (especially dry scrublands and perhaps open grasslands), and thus may have exploited different resources.
Foraging (the systematic search for food and other provisions) was THE lifeway of all hominids from the earliest australopithecines until about 10,000 years ago (the start of agricultural modes of subsistence.
Foraging by australopithecines and early species of Homo most likely consisted of collecting roots, berries, seeds, nuts, salad greens, insects, etc. Around 2 m.y.a meat, obtained by scavenging, became part of the foraging way of life. Eventually fish and shellfish would be added.
Digging sticks used by modern chimpanzees. While such tools have not been found with robust australopithecine fossils, it is possible they used such tools
Hominids often traveled up to 10 km to acquire right kind of stone from which to make tools.
Can a hominid eat meat obtained like this and not get sick? Perhaps if one gets there within a few hours of a predator’s kill.
NOTE: While heidelbergensis lived in Africa, other hominid species lived elsewhere: H. erectus continued successfully in eastern and southeastern Asia
“One handaxe does not a ritual make.” - crsmith
Eye, skin & hair color speculative
Dark haired male
N legs - not get the same answer from any two of them.
No other aspect of human evolution has generated as much public interest for so long a time as the story of the Neanderthals.
Until very recently, Neanderthals were most often depicted as brutish, dimwitted, “half man . . . half beast.”
By 30,000: Neanderthals gone
Recent genetic data indicates no mixing
Geometric figures: 95 kya
Shell beads: 70 kya
Cave paintings: 30 kya
Earliest musical instruments: 35 kya
“Venus” figurines: 35 kya