[SlowBoat407]

"The discovery is a striking example of how different animals can evolve the same kind of body over and over again."

What????

The beauty of having something written down is that if you don't catch it the first time, you can go back and read it again.

If you need it explained further, the idea is that external conditions will shape the evolution of a body type - for example, a two-legged velociraptor-type creature - because it is the best type suited for those conditions. After all the other variants have gone by the wayside, the one best suited for a particular set of conditions remains.

[mlc9852]

So if it evolves the same body over and over again, how is that evolving?

[mlc9852]

"After all the other variants have gone by the wayside, the one best suited for a particular set of conditions remains."

Why would the other variants go by the wayside? What would cause variants that weren't suitable?

[csense]

... the idea is that external conditions will shape the evolution of a body type - for example, a two-legged velociraptor-type creature - because it is the best type suited for those conditions.

But unless you can predict both the conditions and type of body, your statement is meaningless since it can account for any conditions correlated to any body plan...and you certainly can't reproduce such a scenario in the lab.

All you have really is unsupported conjecture...of, course, that's nothing new when it comes to the hard science of evolution.