PORTLAND, Ore. (CN) — Environmentalists petitioned the U.S. Fish and Wildlife Service on Thursday to conserve a dwindling subspecies of newt in Oregon’s Crater Lake through the Endangered Species Act.

PORTLAND, Ore.— The Center for Biological Diversity filed a legal petition today with the U.S. Fish and Wildlife Service to protect the Crater Lake newt (also known as the Mazama newt) under the ...

The newts live only in Oregon’s Crater Lake and their populations have crashed in recent years due to the expansion of introduced signal crayfish and warming lake temperatures from climate change.