Biological weapons are any infectious agent such as a bacteria or virus when used intentionally to inflict harm upon others. This definition is often expanded to include biologically-derived toxins and poisons.

Micrographia – Some Physiological Descriptions of Minute Bodies Made by Magnifying Glasses with Observations and Inquiries Thereupon. It is the great prerogative of Mankind above other Creatures, that we are not only able to _behold_ the works of Nature, or barely to _sustein_ our lives by them, but we have also the power of _considering_, […]

On the Origin of Species By Means of Natural Selection, or, the Preservation of Favored Races in the Struggle for Life. When on board H.M.S. ‘Beagle,’ as naturalist, I was much struck with certain facts in the distribution of the inhabitants of South America, and in the geological relations of the present to the past […]

“The reasonings about the wonderful and intricate operations of Nature are so full of uncertainty, that, as the Wise-man truly observes, hardly do we guess aright at the things jhat are upon earth, and with labour do we find the things that are before us.” Stephen Hales, Vegetable Staticks (1727), p. 318, 1738. “Ever since […]