Nature's Enigma POLITICAL SCIENCE / World / European military doctors working for the

military doctors working for the British Army in Iraq and Afghanistan

Elite New Yorkers spearheaded the creation of the Art-Union and the Metropolitan

a figure of dignity and fortitude

These texts—the most complete of which are attributed to Donatus

The consequences have been grave: unnecessary regulation has imposed major costs on the U

Nature's Enigma POLITICAL SCIENCE / World / European military doctors working for theTwo striking discoveries made 1740 a turning point in the history of 18th century biology. Charles Bonnet established that aphids could reproduce without male fertilization. Shortly afterwards Abraham Trembley proved that a tiny aquatic animal, the fresh water polyp, or hydra, could regenerate from cuttings like some plants. The discovery of the polyp was important because of the disturbing metaphysical issues that it raised. In their letters written