Water springtails congregate in water above soggy dead leaves

    Water Springtail

    Podura aquatica
    Photo of a single water strider

    Water Striders

    Aquarius remigis; also species in the genus Gerris
    Photo of a whirligig beetle viewed from above

    Whirligig Beetles

    Species in the beetle family Gyrinidae
    Photo of a White River crawfish.

    White River Crawfish

    Procambarus acutus
    yellow sandshell

    Yellow Sandshell

    Lampsilis teres

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