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Prehistoric fish the first to grow teeth

prehistoric fish teeth placoderms

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7 replies to this topic

#1    Still Waters

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Posted 18 October 2012 - 06:51 PM

Scientists have found fossil evidence of the first animal to grow a set of pearly whites — a prehistoric fish that lived more than 380 million years ago.

An international research team discovered teeth in several specimens of an ancient fish species, known as placoderms, a finding that likely represents the origins of teeth and jaws in animals.

A full set of chompers has been key to the success of most top predators.

http://www.smh.com.a...1018-27sae.html

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#2    Ashotep

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Posted 18 October 2012 - 07:21 PM

So I owe my teeth to a fish.


#3    Horus Christos

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Posted 20 October 2012 - 05:01 PM

@Hilander.....not only teeth, some of those fish were ultimatly our ancestors too.


#4    Lava_Lady

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Posted 20 October 2012 - 11:44 PM

Well, I'm glad they don't look the same as they do on that old fish.

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#5    Idano

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Posted 21 October 2012 - 01:04 AM

Some do

What could possibly go wrong?

#6    BaneSilvermoon

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Posted 21 October 2012 - 06:09 AM

This makes perfect sense when looking at the development of sharks teeth, a fish. Their ancestors were once toothless and used an ancient version of the placoid scales in their skin to help grip prey. Some of those scales that make their skin rough eventually developed into full teeth.

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#7    C235

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Posted 21 October 2012 - 04:41 PM

The skeptical view of this discovery would be how could they succeed without dentists?!


#8    Cherry-

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Posted 23 October 2012 - 06:16 AM

LOL @C235 .. I wonder how all animals looked like 380 million years ago. Would be so scary





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