Seldom seen out of water, the Oregon spotted frog (Rana pretiosa) prefers the safety of the marsh. Historically, Oregon spotted frog populations occurred throughout the Fraser Valley, from South Surrey to Hope. Now it is Canada's most endangered amphibian, with only three breeding populations left in British Columbia, and less than 300 breeding females in total. The primary cause for the decline has been the loss of wetlands to urban development and agriculture. In recent years, additional threats to the few remaining frogs also include pollution, mining, and invasive species such as bullfrogs. In this video we follow conservation biologist Monica Pearson as she looks for the precious frog in wetlands of the Fraser Valley.