Baidarka

True bible believers already believe that legless snakes evolved from a talking serpent with legs.
So scientists and believers can agree that snakes had ancestors that walked on 4 legs. Bible believers know this to be true since it is stated to be so in the God inspired text of Genesis and scientists know this to be true because snake skeletons have residual hips. Of course for you believers, snakes had their legs taken away as punishment for introducing mankind to sin, and for scientists the legs slowly lost their function over many generations of crawling and then the snake ancestors with bigger useless appendages started losing the survival competition to their buddies with smaller useless appendages until only the more stream lined legless snakes were left (thus the saying "if ya don't use it ya lose it).But why quibble over trivial details the main thing is that we can rejoice in the fact that we all can agree, believers and agnostics alike that the wonderful legless snakes evolved from serpents with legs.
Just as with the snake the skeletons all cetacean skeletons show evidence of ancestor limbs they have toes and many other residual traits of terrestrial animals. Maybe the whales had a bad ancestor who offended God by being gluttonous or prideful. Maybe the good Lord rewarded the cetaceans for some virtue or another and turned their feet into flippers.
Anyway the snake in the Garden of Eden (Jesus Christ according to one branch of the ancient Gnostics) points the way to resolve the evolution issue once and for all. Evolution is blessed by God

MortalWombat

But scientists, to my knowledge, have never seen evidence that snakes could once talk, or that they now eat dust.

Coragyps

Swallowing Jonah and then bragging about it?

Duvenoy

There is some uncertainty on the origons of snakes. Fossils are very rare and usually consist only of a few vertibrae and skull fragments, occasionly teeth. It was once thought that they simply evolved from a lizard ancestor, but now some researchers aren't so sure. I read a paper a few years ago that speculated that they came from a marine ancestor. As I recall, it was a pretty good argument. But until more and more complete fossils are found, the question's still up in the air.

But, here's something interesting and *perhaps* supportive of a non-lizard ancestor: There are several species of legless lizard, called Glass Snakes in the US and Slow Worms in the UK. They have common lizard features such as eyelids an a detachable tail, but no legs. Their habits are entirely snake-like except that they are, for the most part, insectivores (some snakes are, too, but I digress).

Now, they lack a feature of their anatomy that all snakes have: They have no wide belly scales controled by individual muscles and cannot 'catapillar' along using only these wide scales as snakes can. Nor can they climb a tree as many snakes commonly do using these scales.

I've been awaiting further evidence for some time now. I'm tentivly leaning toward the non-lizard ancestor. We shall see.

d