Breadcrumb Home Search Showing results for Language Content type Photo (34) Article (22) Slideshow (6) Video (2) Audio (1) Lesson Plan (1) Overview (1) Article Type Personal Perspectives (10) Article (9) Topics (-) Ancient Seas (67) Extinctions (27) At The Museum (16) Marine Mammals (16) Evolution (13) Extinctions (8) Sharks & Rays (7) Climate Change (6) Invertebrates (5) Exploration (3) The Anthropocene (3) Through Time (3) Careers (2) Plants & Algae (2) Reptiles (2) Seabirds (2) Shifting Baselines (2) Temperature & Chemistry (2) Coral Reefs (1) Deep Sea (1) Fish (1) Fishing (1) Food Web (1) History & Cultures (1) Human Connections (1) Ice (1) Microbes (1) Plankton (1) Recreation (1) Seafood (1) The Seafloor (1) Tags Paleobiology (29) Fossils (24) Smithsonian scientists (18) Ancient sea life (17) Whales (15) Scientific illustrations (14) National Museum of Natural History (13) Geologic periods (9) Scientists at work (8) Adaptations (7) Mussels, Oysters & Relatives (7) New discoveries (4) Sharks (4) Smithsonian collections (4) Smithsonian Tropical Research Institute (4) Corals (3) Feeding (3) Geology (3) Manatees & Dugongs (3) News (3) Under the microscope (3) Algae (2) Chemistry (2) Climate Change (2) Dolphins & Porpoises (2) Endangered species (2) Fisheries (2) Seagrass (2) Shifting Baselines (2) Technology (2) Women in Science (2) Site Search Sort by RelevanceTitle SortAuthored on Order AscDesc Sort By RelevanceA-ZZ-ANewestOldest Video Excavating an Extinct Toothed Whale June 2011 Watch the Video Photo Ice Age Map of the World April 2016 View Image Article Flippers or Feet? An Extinct Mammal May Have Been Replaced By Today's Sea Cows August 2016 Read the Full Article Photo Squalicorax Shark Fossil August 2014 View Image Photo Fossil Jellyfish November 2015 View Image Photo Globotruncana falsostuarti March 2010 View Image Photo Lenticulina secans March 2010 View Image Photo Multispecies Communities of Seacows January 2012 View Image Article The Discovery of Multispecies Communities of Seacows January 2012 Read the Full Article Article New Archaeocetes from Peru Are the Oldest Fossil Whales from South America September 2011 Read the Full Article Slideshow Rudist Reefs December 2009 See the Full Slideshow Photo Ammonite January 2010 View Image Pagination Previous page Page 1 Page 2 Page 3 Current page 4 Page 5 Page 6 Next page