Description: [view in Spanish][edan-image:id=siris_sic_9227,size=110,left]Exchanging specimens is essential in botanical research: Herbaria swap their duplicates in return for specimens they lack. Such international trading is based on relations established through correspondence and research trips, relations that endure through generations of botanists. By the early twentieth century,
Description: The Hirshhorn Museum and Sculpture Garden opened in 1974 to house the modern art collection of Joseph H. Hirshhorn. Located west of the Arts and Industries Building, in the first truly modern building on the National Mall, the Museum and Sculpture Garden feature artists such as Calder, de Kooning, and Rodin. History of the Hirshhorn Museum and Sculpture GardenAdditional
Description: While only two years old, World Migratory Bird Day is just one of the latest evolutions in conservation awareness. Related celebrations go back more than twenty-six years and draw on over a century of research.