One day an Opossum who had gone to sleep hanging from the highest branch of a tree by the tail, awoke and saw a large Snake wound about the limb, between him and the trunk of the tree.

“If I hold on,” he said to himself, “I shall be swallowed; if I let go I shall break my neck.”

But suddenly he bethought himself to dissemble.

“My perfected friend,” he said, “my parental instinct recognises in you a noble evidence and illustration of the theory of development. You are the Opossum of the Future, the ultimate Fittest Survivor of our species, the ripe result of progressive prehensility—all tail!”

But the Snake, proud of his ancient eminence in Scriptural history, was strictly orthodox, and did not accept the scientific view.