Breadcrumb Home Search Showing results for Language Content type Article (22) Photo (22) Slideshow (6) Lesson Plan (3) Audio (1) Overview (1) Article Type Article (9) Personal Perspectives (9) Topics (-) Ancient Seas (55) Extinctions (21) At The Museum (16) Marine Mammals (16) Evolution (11) Climate Change (6) Extinctions (6) History & Cultures (3) Invertebrates (3) Sharks & Rays (3) Temperature & Chemistry (3) Through Time (3) Careers (2) Exploration (2) Fishing (2) Plants & Algae (2) Reptiles (2) The Anthropocene (2) The Seafloor (2) Deep Sea (1) Fish (1) Food Web (1) Human Connections (1) Ice (1) Microbes (1) Plankton (1) Recreation (1) Seabirds (1) Seafood (1) Shifting Baselines (1) Tags Fossils (23) Paleobiology (22) Ancient sea life (16) Smithsonian scientists (16) Whales (13) National Museum of Natural History (11) Scientific illustrations (10) Geologic periods (9) Scientists at work (7) Adaptations (6) Mussels, Oysters & Relatives (5) New discoveries (4) Manatees & Dugongs (3) News (3) Smithsonian collections (3) Smithsonian Tropical Research Institute (3) Algae (2) Chemistry (2) Climate Change (2) Dolphins & Porpoises (2) Feeding (2) Fisheries (2) Maritime history (2) Native people (2) NOAA (2) Seagrass (2) Sharks (2) Technology (2) Under the microscope (2) Women in Science (2) Site Search Sort by RelevanceTitle SortAuthored on Order AscDesc Sort By RelevanceA-ZZ-ANewestOldest Photo Hurdia Victoria August 2013 View Image Photo Ichthyosaur Nursery December 2022 View Image Photo Cambrian Period (542 – 488 Million Years Ago) September 2011 View Image Photo Carbonate Reef (Cretaceous Period: 145 - 65 Million Years Ago) December 2009 View Image Article At STRI, No Whales Yet, But There Are Fossil Sea Cows... June 2011 Read the Full Article Lesson Plan The Methane Circus November 2009 Read the Full Overview Lesson Plan The Puzzle of Ice Age Americans December 2009 Read the Full Overview Pagination Previous page Page 1 Page 2 Page 3 Page 4 Current page 5