Breadcrumb Home Search Showing results for Language Content type Article (6) Photo (6) Slideshow (2) Article Type Article (3) Personal Perspectives (2) Topics (-) Ancient Seas (14) (-) Evolution (14) At The Museum (5) Extinctions (4) Marine Mammals (4) Extinctions (2) Through Time (2) Exploration (1) Human Connections (1) Invertebrates (1) Reptiles (1) Sharks & Rays (1) Tags Paleobiology (8) Fossils (7) Ancient sea life (6) Adaptations (5) National Museum of Natural History (4) Whales (4) Feeding (3) Geologic periods (3) Smithsonian scientists (3) Scientific illustrations (2) Scientists at work (2) Site Search Sort by RelevanceTitle SortAuthored on Order AscDesc Sort By RelevanceA-ZZ-ANewestOldest Slideshow A Collection of Cambrian Fossils October 2013 See the Full Slideshow Slideshow The Ocean Throughout Geologic Time, An Image Gallery September 2011 See the Full Slideshow Article If You Build An Ocean, Sea Monsters Will Come October 2018 Read the Full Article Article Meals of the Mighty Mosasaur November 2018 Read the Full Article Article Shark Teeth Tell Great White Shark Evolution Story November 2012 Read the Full Article Photo Elevator Rudists January 2018 View Image Photo Ancient Entoproct Community August 2015 View Image Article Keeping An Ear Out For Whale Evolution March 2015 Read the Full Article Photo Cambrian Period (542 – 488 Million Years Ago) September 2011 View Image Photo Early Whale with Webbed Feet October 2016 View Image Photo The First Filter Feeder August 2015 View Image Photo Multispecies Communities of Seacows January 2012 View Image Pagination Current page 1 Page 2 Next page