The spider weaves a sticky web
To capture bugs to eat.
What keeps the spider's sticky web
From sticking to her feet?
Spider webs are very tricky
Because not all the strands are sticky.
Unlike the passing hapless fly,
The spider knows which strands are dry.
But if she accidentally stands
Upon one of the sticky strands,
She still would not get stuck, you see--
Her oily body slides off free.