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- Who’s your Daddy?
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- That depends. How far back do you want to go?
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- I am quite certain your Daddy was not around 4,600,000,000 years ago. That is when the Sun was first forming.
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- You had to at least wait until the Earth first formed 4,500,000,000 years ago. But, then it was too hot and too volatile for life to form. 150,000,000 years later a planet sized asteroid smashed into Earth and splashed the Moon into orbit. 4,350,000,000 years ago that collision re-melted the Earth and reset everything.
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- We do not know what happened in between ,but , 550,000,000 years later life was thriving. Of course it was primitive biology, but, biology none the less. 3,800,000,000 years ago chemistry had somehow evolved into biology. Geologists know this because photosynthesis organisms integrate carbon into solid matter. And, they find this evidence in the rocks. Nature puts carbon into the atmosphere. Life concentrates carbon and puts it into carbon-rich rocks. Photosynthesis was occurring. Other evidence is the oxygen released by photosynthesis created rust in iron.
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- 400,000,000 years later the earliest fossils of cells were found. That is 3,400,000,000 years ago.
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- 2,100,000,000 years ago multicultural life existed.
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- 550,000,000 years ago the Cambrian era of life flourished on Earth.
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- 250,000,000 years ago the Permian mass extinction occurred.
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- 65,000,000 years ago the dinosaurs went extinct.
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- 2,000,000 years ago the Homo- species evolved. In fact, going back a little further to Homo- ancestors we have evidence of tools that existed 2,600,000 years ago.
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- Before your Daddy started evolving 89% of Earth-life time had elapsed. We all started in the last 4%.
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- Going back 3,500,000,000 years ago bacteria and archaea were separate species but still had 60 genes in common. That is how plants and animals started, but, it took a long time from one celled organisms to get to the oldest fossils of Homo Erectus that existed 1,850,000 years ago.
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- Theory has it that your Daddy came out of Africa 2,500,000 years ago. Some primitive stone tools have been found on an island 240 miles off the coast of Yemen that are 2,600,000 years old.
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- Another theory based on discoveries in Georgia , Russia, indicate that Homo-Erectus may have migrated to Asia and then back to Africa where the first Homo-Sapiens evolved. Homo-Sapiens happened some 1,200,000 years ago.
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- Homo- Erectus also evolved into Homo-Neanderthals, and Homo-Floresienes. This last species is newly discovered living on the Indonesian island of Flores. Evidence of fossils on these islands is a strong indication that Homo-Erectus learned how to cross open waters.
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- So your Daddy could be African, could by Asian, could be Neanderthal . DNA evidence suggest some cross-species mating occurred in Europe. We are learning more every day. Microbiology ( genetics ) and geochemistry are providing new evidence.
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- Science is not like religion. Science seeks evidence to be proven wrong. That is how we learn. Science changes when new evidence tells it to. There is no scientific authority. Truth simply means that predictions work. And, there are no absolute truths because new evidence can quickly change them. Ask questions, that is how you learn. You can be wrong, you can fail, that is how you learn. No one has all the answers. An announcement will be made shortly, stay tuned.
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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 Thursday, January 24, 2013
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