Breadcrumb Home Search Showing results for Language Content type Article (9) Photo (6) Slideshow (2) Article Type Personal Perspectives (4) Article (2) Topics (-) Extinctions (17) Ancient Seas (14) Marine Mammals (10) At The Museum (9) Evolution (3) Plants & Algae (2) Exploration (1) Extinctions (1) Fishing (1) History & Cultures (1) Sharks & Rays (1) Temperature & Chemistry (1) Tags Fossils (11) Paleobiology (10) Smithsonian scientists (10) Whales (10) Ancient sea life (6) National Museum of Natural History (6) Scientists at work (4) Geologic periods (3) New discoveries (3) News (3) Smithsonian collections (3) Adaptations (2) Site Search Sort by RelevanceTitle SortAuthored on Order AscDesc Sort By RelevanceA-ZZ-ANewestOldest 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 Dispatches from the Field: Treacherous stream crossings and a new fossil find May 2012 Read the Full Article Article Flippers or Feet? An Extinct Mammal May Have Been Replaced By Today's Sea Cows August 2016 Read the Full Article Slideshow A Squalodontid Success June 2011 See the Full Slideshow Pagination Previous page Page 1 Current page 2