Since 2000, the Oregon Zoo has released more than 35,000 silverspot butterflies in partnership with the Oregon Parks and Recreation Department, U.S. Fish and Wildlife Service, and Woodland Park Zoo.

Oregon Zoo releases nearly 500 of its ‘tiniest residents’ into the wild . Published: Jun. 30, ... “The Oregon silverspots have lost a lot of their habitat,” Gomez said.

PORTLAND, Ore. (KATU) — Visitors to the Oregon Zoo have the chance to see two new furry residents this week as a pair of orphaned cougar cubs, rescued by the Washington Department of Fish and ...