How a massive Nevada lithium mine could drive this tiny species to extinction

The Kings River pyrg, a snail about the size of grain of rice, is only found in Nevada.

Opponents of the nation’s largest lithium mine under construction want U.S. officials to investigate whether the project in Nevada already has caused a drop in groundwater levels that could lead to extinction of a tiny snail being considered for endangered species protection.

Environmentalists and Native American activists are demanding that the U.S. Interior Department address what they say...