Breadcrumb Home Search Showing results for Language Content type Photo (29) Article (4) Video (2) Overview (1) Article Type Article (4) Topics (-) Through Time (36) Ancient Seas (3) At The Museum (3) Careers (2) Climate Change (2) Evolution (2) Human Connections (2) Invertebrates (2) Exploration (1) Ice (1) Poles (1) Reptiles (1) Sharks & Rays (1) Temperature & Chemistry (1) Tags Ancient sea life (4) Fossils (4) Paleobiology (3) Smithsonian scientists (3) Apex predator (2) Arctic (2) Geologic periods (2) National Museum of Natural History (2) Sea stars & Urchins (2) Sharks (2) Site Search Sort by RelevanceTitle SortAuthored on Order AscDesc Sort By RelevanceA-ZZ-ANewestOldest Photo Plesiosaur on the Hunt April 2019 View Image Photo Jurassic Lagoon April 2019 View Image Photo Xiphactinus April 2019 View Image Photo The Cephalopods' Hideout April 2019 View Image Photo Carboniferous Sharks April 2019 View Image Photo Carboniferous Snails April 2019 View Image Video Life in the Ediacaran April 2019 Watch the Video Photo Ammonoids April 2019 View Image Photo Sea Lilies April 2019 View Image Photo Reptiles and Birds of the Mesozoic April 2019 View Image Photo Mesozoic Predators April 2019 View Image Photo The Mesozoic Sea April 2019 View Image Pagination Current page 1 Page 2 Page 3 Next page