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  • Beach with algae and other objects on it. Caption: Converting bacteria and organic material into protein,

    Part of the "Branches on the Tree of Life" series. Worms with segmented bodies make up the phylum Annelida. Explores the three classes of annelids: Class Polychaeta (feeding, locomotion, and larval stages), Class Oligochaeta (lifestyles, feeding adaptations, and anatomy of freshwater oligochaetes and earthworms), and Class Hirudinea (leeches, crayfish, and worms show adaptations for commensal, parasitic, and scavenger lifestyles). DNA evidence places annelids close to the molluscs on the tree of life.

    (Source: DCMP)

  • Specimens of worms are stacked in bottled jars. On screen text, 427,000 specimens. Caption: Philips, we have at least 427,000 specimens of worms,

    Dr. Anna J. Phillips, Curator of Parasitic Worms and Protozoa at the Smithsonian's National Museum of Natural History takes host Emily Graslie on a tour of the invertebrate zoology collection. Some of the specimens covered include earthworms, leeches, parasitic nematodes, bristle worms, velvet worms, and bobbit worms. Part of "The Brain Scoop" series.

    (Source: DCMP)