Posted on 11/03/2007 7:44:49 PM PDT by 49th
The chicken egg has been prepped for surgery – a pea-size hole cut in the shell and covered with sticky tape. And now Hans Larsson, a McGill University researcher, removes it from the incubator, places it under a microscope and prepares to operate.
He gently peels off the tape and teases back the membranes that line the shell with tweezers. Through the eyepiece, he can see the tiny dot of a heart, steadily beating. He can also see the bud where he implants a milky bead doused in a protein. He hopes it will coax the embryo to grow a big tail. A dinosaur-like tail.
paleontologist, Prof. Larsson spends a significant portion of his time doing traditional dinosaur hunting, digging fossils as far afield as the Arctic and Africa with jackhammers and pickaxes. But he has long been frustrated with the limitations of studying old bones and what they reveal about the mysteries of evolution.
It was by examining ancient skeletons that paleontologists learned that modern birds, including chickens, descended from dinosaurs and that their relatives include such fierce predators as Tyrannosaurus rex. What fossils don't reveal, though, is how exactly such dramatic anatomical changes first arose. How did teeth the size of bananas turn into beaks? Or mighty tails become wimpy, feathered stumps?
For answers, Prof. Larsson has turned to the burgeoning field of evo-devo – or evolutionary developmental biology – a radical new approach to understanding the past.
It is based on the astonishing discovery that modern animals, including humans, share many of the same body-building genes and that some of these genes have been around for millions of years.
(Excerpt) Read more at theglobeandmail.com ...
what’s “progress?” :p
Don't worry. I'm collecting it for posterity. At some point people will be able to read your debate without the wait.
ROTFLOL
That’s one big chicken.
“A chicken with a 30 foot tail would be worth paying 50 cents to
see at a gas station along Route 66.”
Especially if it was taking a sip from a 66-foot tall pop bottle,
right thar in Arcadia, OK.
http://www.pops66.com/38.0.html
Some are, some aren't:
Is all evidence and knowledge scientific?
As long as we keep guns away from the Cows (in reference to the Youtube video “Cows with Guns”)..... Don’t want to see a McDonalds or a Burger King burned-sarc...
Scientific knowledge has the advantage that it can be verified beyond the original observer.
Where do I get my hunting license for those things?
To I assume that some knowledge and evidence is not scientific then?
Is scientific knowledge and evidence superior to nonscientific knowledge and evidence?
I didn't compare a tree and an egg. You're making stuff up.
Oh, naughty naughty. LOL
I believe recent evidence suggests we share 95% of our genes with chimps. Several years back there was a report that we share 99%. That’s so much an inaccuracy as a slightly inaccurate estimation. BTW, chickens still have the genetic material for teeth. If it happened that one day someone made a dinosaur from a chicken, would that convince you of evolution? Just curious.
The consortium found that the chimp and human genomes are very similar and encode very similar proteins. The DNA sequence that can be directly compared between the two genomes is almost 99 percent identical. When DNA insertions and deletions are taken into account, humans and chimps still share 96 percent of their sequence. At the protein level, 29 percent of genes code for the same amino sequences in chimps and humans. In fact, the typical human protein has accumulated just one unique change since chimps and humans diverged from a common ancestor about 6 million years ago.Source
To put this into perspective, the number of genetic differences between humans and chimps is approximately 60 times less than that seen between human and mouse and about 10 times less than between the mouse and rat. On the other hand, the number of genetic differences between a human and a chimp is about 10 times more than between any two humans
No I'm not. You are the one who planted the trail of an egg to a tree. Maybe you were thinking of a bird laying an egg in a tree. Who knows with evos.
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