[ClearCase_guy]

Because the jaws appear to place the fossil species among lineages of insects that exhibit well-developed wings, the authors expressed confidence that little Rhyniognatha could indeed fly.

Based on the jaw, I'd say this insect could fly.
Excuse me?
Well, you see, many insects with jaws like this, can fly.
And such insects, you maintain, evolve over time?
Most certainly!
The jaws evolve, the ability to fly evolves. I see. Tell me, what makes you think that these jaws indicate that the ability to fly had already evolved in this particular instance? Couldn't the jaws have come first, and flight second? Or not at all?
Well, yes. We said it was shakier. We don't know for sure.
So, you're making a guess? A great leap based on woefully incomplete information? And this is science?
Well, it brings in the grant money!

[Michael_Michaelangelo]

Well, it brings in the grant money!

And the beat goes on.

[Jim Cane]

Based on this picture, does the animal fly around in a UFO, brachiate through trees, or does he walk around on hooves?

Many animals exhibit this particular characteristic. Is it reasonable to make assumptions as to it's mode of mobility, based on what we see other animals with this same trait?

[BradyLS]

Can't we talk about the probability of life existing on Mars (if water once flowed there) instead? I mean, we now have reasonably strong evidence pointing to the distinct possibillity of flowing water in Mars' past!