For the second time in a week, wildlife biologists have confirmed that wolves are living and breeding in Oregon and Washington.

The most recent proof came Wednesday when Washington Fish and Wildlife released the results of DNA tests done on two wolves captured and released in Okanogan County. WDFW said the tests prove the animals are 100 percent gray wolves, not hybrids.

Slideshow: Wolf pups at play

Also, Conservation Northwest released photos of one of the wolves romping with six pups. WDFW said this is the first pack to take up residence in Washington since the 1930's.

It's been a good week for wolves and their supporters. On Monday, Oregon Fish and Wildlife confirmed that a wolf pack is living in northern Union County in the northeast corner of the state. State officials heard at least two adults and two pups during a howling survey early Friday morning.

It's Oregon's first wolf pack since the 1940's.

Later that day, a federal judge in Montana ordered Rocky Mountain wolves to be put back on the Endangered Species List.

Federal officials wanted to de-list the wolves because of growing numbers in Idaho, Wyoming and Montana. Those states were planning wolf hunts for the fall, now the hunts have been cancelled.