Yellowstone National Park’s oldest wolf gave birth to 3 pups this spring

From KXLH:

The oldest wolf in Yellowstone National Park, known as Wolf 907, gave birth to another litter of pups this spring.

“This 10th litter has just started to come out of the den,” said Kira Cassidy, a research associate with the Yellowstone Wolf Project.

The three pups are now about 4 weeks old and have started to crawl around. Wolf 907’s current den is visible from the roadway.