Description: [caption id="" align="aligncenter" width="430" caption="A baby calf resting on the lawn of the South Yard behind the Smithsonian Institution Building or "Castle," as part of the Department of Living Animals around 1887, Live animals were kept in the South Yard for exhibit and study by the taxidermists before the National Zoological Park was founded in 1889, 1887, by
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,