-
-
- A new species? They live among us.
-
- This review is about learning that the diversity of evolution is what survived. We do not come from a single lineage. ( See Review #1558 - Whose your Daddy ). Recent discoveries show a multitude of species have come and went, all close relatives. The bones tell us. Will this species survive? Time will tell.
-
- Well, I’ll be a monkey’s uncle!
-
- You have all seen the pictures. The walking figures with the chimpanzee on the left. A sequence of evolution to the right becoming a caveman, then, a modern human. That is how most people perceive the theory of evolution for mankind.
-
- However, evidence is evolving too. And, the picture science is getting is much different.
-
- The most likely scenario is that over the last 8,000,000 years dozens of species and paths of our evolution took place. At the earliest of times the ancient apes had features of upright walking.
-
- “Ardi” is a nearly complete skeleton discovered in Ethiopia. She is 4,400,000 years old. And , she is more related to hominins than she is to chimpanzees. She still retains a combination of human like and ape like characteristics.
-
- A single foot skeleton was recently found in Burtele, Ethiopia, that was another up-right walking species. It was a biped different than Ardi. This foot is dated to be 3,400,000 years old.
-
- “ Lucy” is a famous find in Africa. She was 3,200,000 years old. She was about one meter tall, had long arms, a small head and walked on two legs.
-
- Findings dated over the last 250,000 years include: All existed over overlapping times.
-
------------------------ Homo Erectus
-
----------------------- Homo Florsiensis - Hobbits found on the Indonesian island of Flores.
-
----------------------- Homo Neanderthals
-
----------------------- Homo Sapiens, that’s us.
-
- The Neanderthals went extinct 28,000 years ago. According to DNA evidence their extinction did not happen before inter-marrying occurred with Homo-Sapiens.
-
- The Hobbit like Floresiensis went extinct 17,000 years ago.
-
- Before these lineages we have “ Hominins” which are primates that are more closely related to us than to chimps.
-
- During the epoch between 23,000,000 years ago and 5,000,000 years ago there were hundreds of different species of apes. Some learned how to walk up-right, then forgot, then remembered again. They adapted to whatever the environment required.
-
- There was a extinct ape “ Bambolii” that lived in Italy 9,000,000 to 7,000,000 years ago that had features associated with hominins. Features like teeth, hips were hominins but feet, fingers, and arms were apelike, fit for climbing trees.
-
- Some of the early chimpanzees had bigger brains than early hominins.
-
- To find a common ancestor to chimps and hominins you probably have to go back 6,000,000 to 10,000,000 years. But, there were multiple branches between here and there. Things got very convoluted. Very messy. At least a dozen different hominin species existed and went extinct along the way. Homo-erectus species lasted the longest from 2,000,000 years ago to 25,000 years ago. All the other paths of evolution went extinct except the last being Homo-Sapiens.
-
- Our evolution oscillated from living in trees to walking upright on the ground. It oscillated from using knuckles and palms to walk with all four to walking as bipeds. Evolution would move backwards and forwards for survival in the current environment. It was never linear. There were multiple parallel lineages in the laboratory of survival of the fittest.
-
- To learn more: See video: ScientificAmerican.com/feb2013/ancestor.
-
------------------------------- -------------------------------------------------------------------
RSVP, please reply with a number to rate this review: #1- learned something new. #2 - Didn’t read it. #3- very interesting. #4- Send another review #___ from the index. #5- Keep em coming. #6- I forwarded copies to some friends. #7- Don‘t send me these anymore! #8- I am forwarding you some questions? Index is available with email upon request. Some reviews are at http://jdetrick.blogspot.com Please send feedback, corrections, or recommended improvements to: jamesdetrick@comcast.net. ---- “Jim Detrick” -- www.facebook.com, -- www.twitter.com, -- 707-536-3272 Saturday, January 26, 2013
No comments:
Post a Comment