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How do you explain this?

evolution

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34 replies to this topic

#31    Timonthy

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Posted 31 July 2012 - 12:17 AM

View PostLrak, on 27 July 2012 - 03:45 PM, said:

So does that mean that there is a fossil for every single stage of evolution for any given species?
Hey Lrak,

Probably the easiest way to think of it:

1. There are not fossils for every creature that ever lived (from the first single cell organisms ~3.8 billion years ago all the way to current living species).

2. ~90% of all living species (some estimates around 10 million) have still not been discovered (current living species).

So imagine how many different species have existed over that time period.

Every human on earth could look for fossils for the next year and we would still have a far from complete fossil record!!

View PostDarkwind, on 28 July 2012 - 05:28 PM, said:

Does this poster come in english?  I know a kid who would love this, poster.
Stuff the kids, I want one in English!


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#32    Beckys_Mom

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Posted 31 July 2012 - 12:38 AM

View PostTimonthy, on 31 July 2012 - 12:17 AM, said:

Stuff the kids, I want one in English!

Darkwind wants one for a kid he likes...I doubt he  would take on your attitude....Easy - Google them in English !!

Edited by Beckys_Mom, 31 July 2012 - 12:40 AM.

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#33    Supersquatch

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Posted 31 July 2012 - 01:36 AM

Chordates are part of a group called Deuterostomia. All deuterosomes are alike because in embryonic development, the blastophore becomes the anus, as opposed to protostomes. I believe that vertebrates evolved from cephalochordate-like animals, which, in turn, evolved from tunicate-like animals.

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#34    Timonthy

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Posted 31 July 2012 - 04:30 AM

View PostBeckys_Mom, on 31 July 2012 - 12:38 AM, said:

Darkwind wants one for a kid he likes...I doubt he  would take on your attitude....Easy - Google them in English !!
Haha yes I know, hence 'kids' as plural. Of course I'd let the kid he's referring to have the first one! ;)

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#35    ambelamba

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Posted 05 August 2012 - 02:10 AM

People tend to forget the fact that fossils usually form in a very extraordinary situation. In most cases bones just crumble away.






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