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Saffron Saffron () is a spice derived from the flower of the saffron crocus (Crocus sativus), a species of crocus in the family Iridaceae . The flower has three stigma s, which are the distal ends of the plant's carpel s. Together with its style, the stalk connecting the stigmas to the rest of more


Autism * * Connections to autism resources at the National Dissemination Center for Children with Disabilities more


Chromatophore chromatophores mediate background adaptation on exposure to dark (top) and light environments (bottom). Chromatophores are pigment -containing and light-reflecting cells found in amphibian s, fish , reptile s, crustacean s, and cephalopod s. They are largely responsible for generati more

Shen Kuo

Shen Kuo Shen Kuo or Shen Kua () (1031 –1095 ) was a polymathic Chinese scientist and statesman of the Song Dynasty (960–1279). Excelling in many fields of study and statecraft, he was a mathematician , astronomer , meteorologist , geologist , zoologist , botanist , pharmacologist more

Rachel Carson

Rachel Carson Rachel Louise Carson (May 27 , 1907 – April 14 , 1964 ) was an American marine biologist and nature writer whose writings are often credited with launching the global environmental movement . Carson started her career as a biologist in the U.S. Bureau of Fisheries , and t more

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