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Evolution Genetics Embryo's and our Common Ancestor's

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Uploaded by on Aug 28, 2007

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.

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  • Its the 21st century jackass. When you want to come join the rest of us please feel free.

  • all vertebrates share a common ancestor which lived during the early cambrian. some 530 million years ago.

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  • Haeckel

    Look it up.

  • well it doesnt support darvins evolution theory at all.

  • @TheMrfly007 What exactly is a lie? The things you see in this video aren't even computer animated, they are real filmed footage.

  • NO this is a LIE

  • There is no safe container to store your values while you’re at work; not living your deepest values will leak on you

    No sudden moves: You’re looking emotional commitment right in the eye. slapCompany Question to you: Where do you stand?

  • As an atheist I don't get how a Christian can be comfortable in feeling that they're with the science and that they accept the Theory of Evolution as an explanation of the diversity of animal life. The whole Natural Selection process is utterly heartless. No benevolent god would ever come up with such a system.

    And a god could easily create a species just like that. Fully developed. That would be easier and less heartless.

  • Alternative view of evolution see video book trailer

  • @mobiltec it's funny how we brand people as "evolutionists" and "creationists", I believe in God and also accept evolution and my religion (islam) doesn't reject evolution.

  • @MrNocompromise people happen to trust my "interacting waves" (this still makes me laugh).

    but come on, let's suppose everything I say is false. let's say evolution and all that are wrong, you know that it still doesn't mean the God you believe in exists.

    I wanted to end this argument, but I'm going to give you a chance to convince me to believe the Bible.

  • @JohnMUTDMazzawi , like I said, since your opinions, thoughts, and reason are just chemical reactions bouncing off your brain walls, no one can trust it as truth or fact, not even you. So, you have fun following your faith of nonsense, and I'll keep following the God that created all and will judge all in the end.

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