"'Do you understand how there could be any writing in a spider's web?'
'Oh, no,' said Dr. Dorian. 'I don't understand it. But for that matter I don't understand how a spider learned to spin a web in the first place. When the words appeared, everyone said they were a miracle. But nobody pointed out that the web itself is a miracle.'
'What's miraculous about a spider's web?' said Mrs. Arable. 'I don't see why you say a web is a miracle-it's just a web.'
'Ever try to spin one?' asked Dr. Dorian."

Charlotte's Web

E. B. White