After the great flood, Noah begins unloading the ark, and instructs the animals to "go forth and multiply!"

Once most of the exodus has completed, he noticed a pair of adders in the back looking rather distraught. "What's the matter?" he asked them.

"We're only adders, we can't multiply!" said the snakes.

Thinking quickly, Noah dashed off into the forest, and returned a short time later carrying a felled tree over his shoulder. After flattening the sides, he placed it on the ground next to the adders, and said "Here's a log table, now even adders can multiply."