Georgetown College. Georgetown University.

An arthropod is an invertebrate animal that has an exoskeleton and jointed appendages. All arthropods are in the phylum Arthropoda, the largest phylum in the Animal Kingdom, including millions of living species of arachnids, crustaceans, insects, and their kin.

These animals are prevalent within the world’s ecosystems, making them excellent sources of information on the status of a particular ecosystem, as well as indicators of ecological changes. Professor Barrows and the members of his lab maintain a database on the biodiversity of the Washington, D.C., area, which catalogs many of the arthropods that have been found in the District.

Explore the Biodiversity Database of the Washington, D.C., Area

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