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Dawn mist covers NSF's Luquillo Critical Zone Observatory and Long-Term Ecological Research sites.
Sean B. Carroll
Harvester in corn field
Mangroves (green) and freshwater marshes (light brown) surround the upper Shark River.
Researchers Joseph Looney and William Schroer maintain lab experiments on disease in oysters.
Algae cover the surface of Wisconsin's Lake Mendota, likely from fertilizer flowing downstream.
Pacific parrotlet
  • How NSF honors America's educators
  • During Teacher Appreciation Week, the National Science Foundation highlights grants and scholarships that promote best teaching practices
  • Released Fri May 12 00:00:00 EDT 2017
Streams have broken up the soft sediments of the Dominican Republic, exposing ancient marine life.
Contact network showing male tortoises (blue nodes), females (red nodes) and burrows (gray nodes).

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