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Evolution Genetics Embryo's and our Common Ancestor's

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Even before Darwin, biologists recognized that species that looked quite different as adults often had close similarities as developing embryos. Many four -- legged animals go through embryonic stages that have similar features -- gill arches, a notochord, segmentation, and paddle-like limb buds -- as they develop into different adults. To Darwin, the embryonic resemblances were strong support for the theory of evolution.One of Darwin's contemporaries, German biologist Ernst Haeckel, summed up the argument in a famous, pithy statement: "Ontogeny recapitulates phylogeny." That is to say, in the process of development, an individual passes through the adult forms of all its ancestors. So, Haeckel proposed, by examining the development of an embryo you could read its entire evolutionary history in the transition from one stage to another. In fact, this isn't strictly true, and the drawings Haeckel made exaggerated the embryonic similarities between species.

Channel: News & Politics
Uploaded: November 30, 1999 at 12:00 am
Author: Acorvettes

Length: 04:42
Rating: 4.77
Views: 5439

Tags: AIG  Darwin  Embryo  Evolution  Genetics  Hamm  Hovind  Ken  Kent  

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Video Comments

Hottides (November 30, 1999 at 12:00 am)
The more science uncovers, the greater is my utter contempt for the unimaginative, parochial and petty concepts enshrined by the concept of God.
mxnad535 (November 30, 1999 at 12:00 am)
This "bullcaca" is scientific theory based on physical evidence that, after being tested and studied thousands of times, always points to the same conclusion.
yippittydoda (November 30, 1999 at 12:00 am)
and isn't that comforting to know... that we never will have all the answers... because that makes God who God is.... some "ONE" with a lot more know-how and know-about that we have or ever will have. the more that science "discovers," the more impressed I am with God
dawkinsfan41 (November 30, 1999 at 12:00 am)
Neo, somebody clicked "spam" on you. Maybe we should stoop to their level and click "spam" on all of their superstitious propaganda. That must be what jesus would do.
JMcH (November 30, 1999 at 12:00 am)
Oooh! I'm a "jackass." What a crippling argument.Why don't you go back to your Shaolin testicle training? The adults are talking.
sandwiches1976 (November 30, 1999 at 12:00 am)
Its the 21st century jackass. When you want to come join the rest of us please feel free.
JMcH (November 30, 1999 at 12:00 am)
Well, good, because if you believe in the bullcaca in this video, you don't know anything about science, either.
Salmo77 (November 30, 1999 at 12:00 am)
Actually oxygen was mostly likely poisonous at the start, firs organisms produced first energy out of other elements, like Sulfur.
mobiltec (November 30, 1999 at 12:00 am)
I'm not going to argue science with a person who believes in magic.
TheRealArchAngel (November 30, 1999 at 12:00 am)
But saying there was a Magical Big Bang cause someone pulled that idea out of their ass and then Hubble had red shift in his data to "prove it" and "man came from Apes" out of ass then finding "Lucy' as "proof" is just as irresponsible and unscientific. Humanoid bones does not a Human Ancestor make, and with the Earth spinning and going around the sun,sun going around galaxy,galaxy going round galactic cluster, there is a shit load of "red shift" that don't mean shit.




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