I did not intend to offend anyone by my comments. The truth is it is impossible to determine the "author" of Hotema's books and you're correct, the subjects of his writing is difficult to understand.
I was fishing in the Gulf of Mexico years ago when a series of storms came by. In one of the rain storms it literally starting raining small fish. Not for an instant did I think those fish were created by the air and sun, but knew a school of baitfish near the surface of the water were caught up in an updraft from the storms and thus it rained fish. This is a fairly common occurance. I'm sure the frogs in dsr's experience came about the same way. The baitfish I saw were small, no great white sharks fell!