New Zealand Mudsnails (Potamopyrgus antipodarum)
New Zealand Mudsnails are tolerant creatures that can thrive in almost any shallow body of water. The snail accumulates in extraordinarily large densities, choking out other aquatic species and depleting primary producers, such as algae and phytoplankton. The snails can travel in the guts of birds, on hiking equipment and in contaminated waters brought by the shipping industry.
Did You Know?
Unique vistas and cultural significance often draw filmmakers to National Parks. Paramount Ranch is the only place in the National Park System where you can see movie making in action at a historic movie ranch once owned by Paramount Pictures (1927).