Me again! I was interested in this nostril business,so I looked up the relevant bit of Genesis 7:

22 Everything on dry land that had the breath of life in its nostrils died. 23 Every living thing on the face of the earth was wiped out; people and animals and the creatures that move along the ground and the birds were wiped from the earth

That seems a little selective of you, pete. True, verse 22 encompasses things with life in their nostrils. But verse 23 not only doesn't mention nostrils but explicitly covers 'creatures that move along the ground' which seems to include beetles to me. Of course, many beetles can fly as well, but their common method of locomotion is moving along the ground. I'd be interested in hearing why you quoted verse 22 but not 23.