Mercury Accumulation Found in Many Land Based Species - EcoWatch
Mercury in Our Waters: The 10,000-Year Legacy of California's Gold Rush | KCET
Mercury revealed as hidden driver in mass extinctions - Cosmos Magazine
Scientists find massive reserves of mercury hidden in permafrost
Atmospheric Deposition and Biogeochemistry of Mercury and other Trace Contaminants in Aquatic Ecosystems, Final Project Report Part II: Mercury Studies 2002-2004 - UNT Digital Library