Evolution, while still only a theory, is the most widely accepted reasoning for the generation of life. But some believe in the spawning of life from inanimate matter - something other than a seed, egg, or parent - or in other words, nothing. No, it’s not the Bible, it’s the work of the original mad scientist/nutty philosopher - Aristotle. His successors recorded such braniac observations as; no one has ever seen eels having sex, so therefore they must be spawned from earth worms, and anchovies apparently come from sea foam.