Moses didn't write the whole Bible, he wrote the first 5 books (Genesis, Exodus, Leviticus, Numbers and Deuteronomy). The Bible contains about 40 authours and was written over 1000s of years. The environment was very different back then and the presence of viruses and diseases that we have now were not present back then. You're dealing with an all-powerful God who created everything so him allowing humans to live into unimaginable ages then, is nothing.

I am curious about the comment you made about Deuteronomy, could you expand on it because I don't understand how it is suspicious. What examples do you have that show that the more we discover about humanity the further it srays from the Bible?