Year of Wonders remonstrates how the Plague is a thing of nature - it is part of the cycle of nature to which we all belong. Brooks aims to emphasize this through the seasonal structure of the novel but also through the constant animal and natural symbolism, similes and imagery throughout the text.
Here are some quotes:
Then she took off, swooping down upon a passing wasp. Her legs had seemed flimsy as threads, but they snapped around the wasp like an
iron trap. Still in flight, her powerful jaws closed on the insect and devoured it. So it goes, I thought idly. A birth and a death, each unlooked for.
I said yes, sitting him down in front of me with the ewe’s rear open before us like a big, glistening blossom.
I see it yet: the pale, folded flesh, the tiny, perfect fingers open like a little flower…
Viccars lay with his head pushed to one side by a lump the size of a newborn piglet
All along Jamie kept darting off like a swallow…
I thought as I lay there in my dull pain, that this how an owl must look to a mouse…
learned that he begged in vain for mercy and howled like a trapped animal.
She gave a great, animal like wail and dropped to the floor.
…she was wild under our hands as a weasal…