Posted on 02/24/2006 4:50:26 AM PST by S0122017
mmmm - sorry, I thought this was an article about Star Jones
We're sorry... We'll behave. Seriesly...
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Yes thats true, it may be that some animals are outside the processes that are involved in genetic adaptation.
For instance sharks dont get cancer, it is not known why but if sharkcells repair their DNA very efficient it would not only explain how they prevent cancer, but also why many shark species dont seem to have changed much over millions of years.
On the other hand there where many more types of sharks once upon a time, and most died out. I think some species are just 'winning formulas' that dont disappear or get altered because they are so succesfull.
From yesterday's thread on this topic....
http://www.freerepublic.com/focus/f-news/1584308/posts?page=7#7
I see.
I missed that.
Perhaps this creature did not "pop out fully formed" as I glibbly said. But, from the article:
This makes it the largest mammal ever found in the Jurassic Period … It boasts the oldest fossil fur ever found … the newly found fossil reveals that early mammals were also far more diverse than thought … making it the earliest mammal known to live partly in the water. Another 100 million years would pass before ancestral whales and manatees turned to the water … More complete fossils have been very rare.
I see a lack of "transitional" creatures which led up to the Jurassic Beaver. And since "punctuated equilibrium" is part of TOE, this seems a case where the world has fish, and salamader-like creatures, and POP! the next day has aquatic mammals with warm-blood, fur and other advanced features.
I just find it amusing.
I wasn't whining about a repost.
I was pointing out that particular post, from yesterday...
You forget that there are a huge amount of fish.
Easy to find a few fossils, but there wouldnt have been as many beavers and mammals.
So the fossils are more difficult to find.
Jurassic Beaver.
Sounds like the name of a ranch in Nevada that horny dinosaurs visited.
Funniest post of the day!
Ward, you were a little hard on the Beaver last night...
Jurassic Petting Zoo.
Uh-oh.
Shouldn't have said that around this crowd...
"What excites palaeontologists is the new-found diversity and complex evolutionary history of early mammals – a group previously known mostly from scattered teeth. More complete fossils have been very rare."
How much can they actually know from scattered teeth?
By cracky: I see what you mean!
Psst.... ya wanna pet my beaver?
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