Starting from about the middle of page 146, here are a few theories on how the dinosaurs might of died, stated directly form the above mentioned book:
Authors, with varying competence, have suggested that the dinosaurs disappeared because the climate deteriorated (became suddenly too hot or too coldor dry or wet), or that the diet did (with too much food or not enough of such substances as fern oil); from poisons in the water or plants or ingested minerals; the bankruptcy of calcium or other neccessary elements). Other writers have put the blame on disease, parasites, wars, anatomical or metabolic disorders (slipped vertebral disks, malfunction or imbalance of hormone or endocrine system, dwindling brain and consequent stupidity, heat sterilization) racial old age, evolutionary drift into senescent over-specialization, changes in the pressure or composition of the atmosphere, poison gasses, volcanic dust, excessive oxygen from plants, meteorites, comets, gene pool drainage by little mammalian egg-eaters, overkill capacity by predators, fluctuation of gravitational constants, development of psychotic suicidal factors, entropy, cosmic radiation, shift of the Earth's rotational poles, floods, extraction of the moon from the Pacific Basin, drainage of swamp and lake environments, sunspots, God's will, mountain building, raids by little green hunters in flying saucers, lack of even standing room in Noah's Ark, and paleoweltschmerz.
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