Breadcrumb Home Search Showing results for Language Content type Photo (40) Article (13) Slideshow (3) Article Type Personal Perspectives (7) Article (3) Topics (-) Extinctions (56) Ancient Seas (32) Marine Mammals (17) At The Museum (14) Sharks & Rays (6) Evolution (4) Exploration (2) Extinctions (2) History & Cultures (2) Invertebrates (2) Plants & Algae (2) Temperature & Chemistry (2) The Seafloor (2) Careers (1) Climate Change (1) Fishing (1) Technology (1) Tags Paleobiology (34) Smithsonian scientists (26) Whales (23) Fossils (16) Ancient sea life (11) Smithsonian collections (11) National Museum of Natural History (9) Scientists at work (9) Geology (5) Adaptations (4) Behind-the-scenes (4) New discoveries (4) Geologic periods (3) News (3) Scientific illustrations (3) Smithsonian Tropical Research Institute (3) Algae (2) Maritime history (2) Technology (2) Site Search Sort by RelevanceTitle SortAuthored on Order AscDesc Sort By RelevanceA-ZZ-ANewestOldest Photo Anomalocaris canadensis August 2013 View Image Article The Whale Graveyard Whodunit March 2014 Read the Full Article Article Shark Teeth Tell Great White Shark Evolution Story November 2012 Read the Full Article Photo Scientists and Fossils August 2013 View Image Photo Wiwaxia August 2013 View Image Photo Teeth and Jaw of an Ancient Shark July 2017 View Image Photo Sediment Core Close-Up January 2014 View Image Photo Fossil tooth spiral November 2017 View Image Photo Megalodon Teeth September 2015 View Image Photo Squalicorax Shark Fossil August 2014 View Image Photo The Ancient Shark Falcatus falcatus August 2014 View Image Photo Ediacaran Community, Proterozoic Eon (2,500 - 542 Million Years Ago) September 2011 View Image Pagination Previous page Page 1 Current page 2 Page 3 Page 4 Page 5 Next page