Published Sep 4, 2018 at 12:54 PM | Updated at 3:24 PM PDT on Sep 4, 2018
A litter of adorable mountain lion kittens, approximately 4 weeks old, was found in the Santa Monica Mountains, the National Park Service said Tuesday.
The kittens, two boys and two girls, joined the "P" family. They were dubbed P-70, P-71, P-72, and P-73.
Researchers said that although the animals were in good health, they were likely the product of inbreeding, which has been a growing problem with the cats that live south of the 101 Freeway.
"The 101 Freeway is a major barrier to movement, which restricts the ability of mountain lions to come into and go out of the area, and unfortunately leads to a lack of breeding options," said Jeff Sikich, biologist for Santa Monica Mountains National Recreation Area.
The kittens were birthed by P-19, researcher said. They believe she mated with her grandson, P-56, a 3-year-old mountain lion.
One solution is in the works, though. Caltrans and others are planning to build a wildlife crossing over the 101 Freeway in the Liberty Canyon area.
See photos of the litter below.