Breadcrumb Home Search Showing results for Language Content type Photo (16) Article (13) Slideshow (3) Video (1) Article Type Personal Perspectives (7) Article (3) Topics (-) Ancient Seas (33) (-) Extinctions (33) Marine Mammals (13) At The Museum (12) Evolution (4) Sharks & Rays (4) Invertebrates (3) Climate Change (2) Extinctions (2) History & Cultures (2) Plants & Algae (2) Temperature & Chemistry (2) Careers (1) Exploration (1) Fishing (1) The Seafloor (1) Tags Fossils (17) Paleobiology (13) Smithsonian scientists (13) Whales (13) Ancient sea life (11) National Museum of Natural History (9) Scientists at work (7) Adaptations (4) New discoveries (4) Geologic periods (3) Geology (3) News (3) Smithsonian collections (3) Algae (2) Maritime history (2) Scientific illustrations (2) Smithsonian Tropical Research Institute (2) Technology (2) Site Search Sort by RelevanceTitle SortAuthored on Order AscDesc Sort By RelevanceA-ZZ-ANewestOldest Video Foraminifera on the Seafloor March 2010 Watch the Video Slideshow A Squalodontid Success June 2011 See the Full Slideshow Slideshow Shark Ancestors December 2009 See the Full Slideshow Slideshow A Collection of Cambrian Fossils October 2013 See the Full Slideshow Photo Sediment Core Close-Up January 2014 View Image Photo Squalicorax Shark Fossil August 2014 View Image Photo The Ancient Shark Falcatus falcatus August 2014 View Image Article Flippers or Feet? An Extinct Mammal May Have Been Replaced By Today's Sea Cows August 2016 Read the Full Article Article Unearthing History: Mary Anning's Hunt for Prehistoric Ocean Giants March 2016 Read the Full Article Article The Whale Graveyard Whodunit March 2014 Read the Full Article Article When Did Today’s Whales Get So Big? July 2016 Read the Full Article Article New Archaeocetes from Peru Are the Oldest Fossil Whales from South America September 2011 Read the Full Article Pagination Current page 1 Page 2 Page 3 Next page