Mercury is a chemical element with symbol Hg and atomic number 80. Classified as a transition metal, mercury is a liquid at room temperature. (National Center for Biotechnology Information (2024). PubChem Element Summary for AtomicNumber 80, Mercury. Retrieved June 19, 2024 from https://pubchem.ncbi.nlm.nih.gov/element/Mercury.)
Ribbon worms, or nemerteans, are related to mollusks and annelids. Most ribbon worms live in the ocean, and some can grow to over 100 feet long, but are usually much less than an inch wide. Some species live on land or in freshwater. Ribbon worms are fearsome predators of annelid worms, clams, crabs and even fish. (Adapted from University of Florida, Florida Museum of Natural History RIVVOB WORMS Accessed 19 April 2023. https://www.floridamuseum.ufl.edu/100years/ribbon-worms/)
