[Nataku X]

There are plenty of things which would falsify evolution and old-earth geology.

(1) Existence of chimeras, a combination of two or more features from separate genetic lines (or, rather, separate branches on the evolutionary tree)... winged horses, for example

(2) A "young" fossil naturally occuring in an older strata--try finding a bird, reptile, mammal in the Cambrian or Precambrian layers. You won't find any. Not even one.

(3) An older layer atop a younger layer will never happen in geology in absence of an overturned/recumbent fold.

On the other hand, there are plenty of things that evolution predicts.

(1) Existence of pseudogenes which, when activated, can develop into older characterstics. jennyp had a wonderful article with pictures where scientists were able to "trigger" teeth (molars and all) in birds. This is a very important one, since YEC should predict that there is no such thing as a pseudogene.

(2) Animal fossils will never straddle layers. I.E., a whale skeleton will never cross layers.

(3) Genes will not "skip" species in an evolutionary tree. For example, if Hyracotherium has a certain gene, and modern horse has that same genes, then all intermediates must have that gene as well.

I had about 5 examples in mind when I started writing this post, but they all went away...

[Doctor Stochastic]

The tree structures that arise in classification. No combs, just trees whether using morphologicy or genetic cladistic techniques.

[nonsporting]

(2) Animal fossils will never straddle layers. I.E., a whale skeleton will never cross layers.

It doesn't take a genius to see why this is so.

But trees do.

[js1138]

(2) Animal fossils will never straddle layers. I.E., a whale skeleton will never cross layers.

This needs to be brought up when someone compares the layered sediments at Mt. St. Helens with the strata at the Grand Canyon.

[qam1]

(3) Genes will not "skip" species in an evolutionary tree. For example, if Hyracotherium has a certain gene, and modern horse has that same genes, then all intermediates must have that gene as well.

I am not sure that's entirely true, Why couldn't a mutated gene get turned off and exist as a pseudo-gene and then later down the evolutionary line get mutated again (not necessary in the same way) and be reactivated.

An example I can think of is Blond hair in humans and other mammals like dogs. Many of the earlier mammals had blond but none in the great apes in which we evolved from. As far as I know and I could be wrong but I believe all mammals have the same or similar 6 genes that control hair color(well 8 for Albino and non-albino). So it looks like it would make more sense for the blond hair gene to skip over many in the evolutionary chains and get reactivated as opposed to evolving separately in many different cases.