II. Haeckel's “Riddle of the Universe” and Theosophy

The creatures of the present day differ widely in appearance from that of their ancestors at those particular stages where they branched off from the human tree. Not that they have remained stationary, for they have deteriorated in accordance with an inevitable law, which, owing to the lengthy explanation it would involve, cannot be entered into here. But the greatest interest attaches to the fact that through theosophy we arrive, so far as man's outward form is concerned, at a genealogical tree not altogether unlike Haeckel's. Haeckel, however, presupposes as the physical ancestor of man nothing but a hypothetical animal. Yet the truth is that at all those points where Haeckel uses the names of animals, the still undeveloped forebears of man should be installed; for those animals, down to the meanest living creatures, are but deteriorated and degenerate forms occupying those lower stages through which the human soul has passed on its upward journey.