c is for cat

Rules for Anchorites

Letters from Proxima Thule

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There is plenty of fossil evidence too including in the origin of tetrapods, or in the origin of birds, or in mammals.

One "problem" is really just a matter of a linguistic trick. When we look at fossils we can see some relatives of modern birds that have a mosaic of features, some of which are bird-like other are not.

Rather than acknowledging that there is a continuum, some have attacked this issue first by stating:

"Pick a character so we can say whether it is A or B. Which one is it?"
If a character is chosen, then they can say, "see there is a gap between A and B there is nothing in between."

You might then show them a fossil that shows the character is in an intermediate stage (say between scale and feather) and they will simply respond "is it a scale or is it a feather?" If you choose one or the other then they will simply go back to saying that there is no continuum.

It would be as if I had everyone in a class divide into two groups, "short people" and "tall people" and said they had to choose a particular criterion that would allow us to put someone in one or the other. Sure we might then end up with two groups, but it would simply be arbitrary and in reality there might be a continuum,

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