Hyperdisease happens more often than we might think, and is very relevant to concerns today about the collapse of public health. See also Laurrie Garrett, Betrayal of Trust.
Biological elements are being inserted into commercial off the shelf products with unanticipated effects, some of which are damaging to humans. One noteworthy example: Corning added an ingredient to its tubes to make them less brittle, and scientists were finding their experiments infected and contaminated. Corning would not reveal what had changed, claiming it was a trade secret. Independent investigation finally determined that there was a synthetic chemical mimicking estrogen and having the effect of an estrogen injection on the cells exposed to the Corning tubes. Buyers beware–there would appear to be some disclosure standards required!
Mass catastrophes have occurred many times over history, eliminating up to 75% of all living things, with varied outcomes in the millions of years thereafter. See also David Keys, Catastrophe, on the most recent, the Dark Ages, circa 535 A.D.
Naturalists and natural science–the study of nature in its own environment, are endangered. Most universities are failing to support this vital area of study, with a result that our understanding of nature stems largely from lab work and computer models that are far removed from reality. See also John Paul Ralston, Voltaire's Bastards.