Pretty interesting book.

The only thing that bugged me about it is the same thing that bugs
me about a lot of scientific books - they tell us "the way things
were" back in prehistoric times, but they never tell us *how* they
know.

Presumably it's all in the fossil record... fossils appear in one
layer of strata, and disappear in subsequent layers - but is that
their sole proof for various of their theories?

For example I always thought that Pangaea had been the original
world continent and then split apart into what we have now...but not
so according to a couple of books - continents actually split apart
twice. How do they know???

Anyway, good book, recommended. Again, for those not paying
attention - it's about the meteor that struck and created Chesapeake
Bay, Virginia, several million years ago, not about non-native
wildlife invading and ruining Chesapeake Bay - which *is* happening,
but wasn't the subject of this book! Bad title!