OTHELLO, Wash.– Hundreds of endangered northern leopard frogs leapt back into the wild at the Columbia National Wildlife Refuge in Grant County last week. The releases were made possible by a partnership of the Washington Department of Fish and Wildlife (WDFW), U.S. Fish and Wildlife Service (USFWS), Oregon Zoo, Washington State University (WSU), and Northwest Trek Wildlife Park. WDFW collected northern leopard frog eggs earlier this spring, and after months of growing at the Oregon Zoo and Northwest Trek Wildlife Park, the frogs were ready for release. Once abundant throughout North America, northern leopard frogs are rapidly disappearing from their …