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Evolution: Missing link found. Fish => Tetrapod
Posted on 1/14/14 at 12:03 pm
Posted on 1/14/14 at 12:03 pm
quote:
New Fossils of Tiktaalik roseae Amaze Scientists
Jan 14, 2014 by Sci-News.com
Paleontologists led by Prof Neil Shubin from the University of Chicago have discovered unique fossils of Tiktaalik roseae – the most compelling example yet of a creature that was at the cusp of the fish-tetrapod transition.
The fossilized pelves and a pelvic fin of Tiktaalik roseae reveal that the evolution of hind legs actually began as enhanced hind fins, according to the scientists. This challenges existing theory that large, mobile hind appendages were developed only after vertebrates transitioned to land.
“Previous theories, based on the best available data, propose that a shift occurred from ‘front-wheel drive’ locomotion in fish to more of a ‘four-wheel drive’ in tetrapods. But it looks like this shift actually began to happen in fish, not in limbed animals,” said Prof Shubin, who is the lead author of the paper published in the Proceedings of the National Academy of Sciences.
Tiktaalik roseae lived in Devonian period around 375 million years ago. It was a predator with sharp teeth, a crocodile-like head and a flattened body. The animal looked like a cross between a fish and a crocodile, growing up to a length of 9 feet as it hunted in shallow freshwater environments.
LINK
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Posted on 1/14/14 at 12:05 pm to NC_Tigah
How the hell do fish "evolve" and "mutate" to where they can go from only breathing underwater to being able to breathe oxygen on land?
It makes no sense.
It makes no sense.
Posted on 1/14/14 at 12:06 pm to NC_Tigah
Posted on 1/14/14 at 12:11 pm to NC_Tigah
Interdasting.
20 pages.
20 pages.
Posted on 1/14/14 at 12:14 pm to NC_Tigah
*Thumbing Revelations anxiously, looking for response with bona fide Biblical Gravitas.
Posted on 1/14/14 at 12:16 pm to goldennugget
quote:This is what I would like to know. I don't know enough about it.
How the hell do fish "evolve" and "mutate" to where they can go from only breathing underwater to being able to breathe oxygen on land?
Other forms of evolution, like natural selection, makes perfect sense.
Posted on 1/14/14 at 12:17 pm to NC_Tigah
Since Dino left The Healing Place, I'm so confused about these things... 
Posted on 1/14/14 at 12:18 pm to goldennugget
quote:
How the hell do fish "evolve" and "mutate" to where they can go from only breathing underwater to being able to breathe oxygen on land?
Gradually.
Posted on 1/14/14 at 12:19 pm to NC_Tigah
Or, maybe that was just a different species altogether or a mutation.
How do they know that it was a transitional species?
It is amazing how every little thing that they find then changes the whole perspective and now they think something different. 20 years from now, we will find out that it wasn't what they thought it was and well, nevermind, but hey! That's Science and anyone who doesn't believe it is an idiot.
How do they know that it was a transitional species?
It is amazing how every little thing that they find then changes the whole perspective and now they think something different. 20 years from now, we will find out that it wasn't what they thought it was and well, nevermind, but hey! That's Science and anyone who doesn't believe it is an idiot.
Posted on 1/14/14 at 12:21 pm to goldennugget
quote:
How the hell do fish "evolve" and "mutate" to where they can go from only breathing underwater to being able to breathe oxygen on land?
It makes no sense.
I can actually understand this response.
A few good courses in biology and genetics would make it easier to understand. After that, the pieces of evolutionary biology and paleontology start to fall into place.
I am too exhausted from the other thread to get in to it very deeply today.
Posted on 1/14/14 at 12:21 pm to AlaTiger
quote:
It is amazing how every little thing that they find then changes the whole perspective and now they think something different
Science is pretty amazing. Every detail discovered can drastically alter our perception.
Posted on 1/14/14 at 12:26 pm to PrimeTime Money
quote:
Other forms of evolution, like natural selection, makes perfect sense.
This.
Natural selection and survival of the fittest make perfect logical sense.
However, monkeys evolving into humans or fish suddenly sprouting legs and lungs to breath out of water seem way more far fetched and implausible.
If one says that evolution is simply the outcome of natural selection, then I can understand that.
However, "natural" physical mutations that just suddenly occur based on need, seem much harder to buy in to.
Why did the alleles and genes of a particular fish decide it needed the body as a hole to have legs and be able to breath out of water? How did it even know what it needed? Can alleles and genes have intelligent thought to even understand what it needs and why it needs it?
I could probably be safer if I didn't have to drive everywhere, why don't my gene's/alleles mutate to give me the ability to have wings and fly?
As far as the monkeys evolving into humans, why do we not see a middle ground today?
We can see a baby, watch it grow into a child, then into a young adult, then into a full grown adult. At any given time, I can see any stage of this growth process on our planet for most any species. Why are there ONLY 100% monkeys/chimps and ONLY 100% humans? Where's the in between? If evolution was/is occurring, shouldn't there be middle stages evident today?
This post was edited on 1/14/14 at 12:27 pm
Posted on 1/14/14 at 12:31 pm to TK421
quote:
Science is pretty amazing. Every detail discovered can drastically alter our perception.
Which is why there needs to be a lot more humility in it - and wonder.
Who knows? Maybe one day you will discover God?
Posted on 1/14/14 at 12:31 pm to NC_Tigah
Fools are gonna be fools.
Posted on 1/14/14 at 12:31 pm to goldennugget
quote:
How the hell do fish "evolve" and "mutate" to where they can go from only breathing underwater to being able to breathe oxygen on land?
It makes no sense.
I watch a lot of cable television so I'm pretty sure I'm qualified to address this query.
The first ones that came out of the water would basically just slide around on the mud to eat muddy things in the mud. It would then return to the water to breath. Or whatever breathing is called underwater. Over time it could "hold it's breath" longer and longer until eventually it just stopped going back to the water to breath and started hunting with tools.
Disclaimer:
I have know idea if that's accurate. I just made that shite up.
This post was edited on 1/14/14 at 12:32 pm
Posted on 1/14/14 at 12:33 pm to AlaTiger
quote:
Which is why there needs to be a lot more humility in it - and wonder.
Well, humble people are generally not attracted to the Scientific community.
quote:
Who knows? Maybe one day you will discover God?
Probably not. I mean, if there is a God he is outside of our natural universe.
Posted on 1/14/14 at 12:38 pm to dcrews
quote:
monkeys evolving into humans
Wow, you have an excellent grasp of the theory of evolution.
Posted on 1/14/14 at 12:40 pm to NC_Tigah
Posted on 1/14/14 at 12:41 pm to TK421
quote:
if there is a God he is outside of our natural universe.
link?
Posted on 1/14/14 at 12:44 pm to BobBoucher
Link to what? God would be, by definition, supernatural. That means outside of our natural world. I don't think a spaceship is going to travel a few hundred thousand light years and suddenly bump into God at some point in the future.
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