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nThe kittens, two boys and two girls, joined the "P" family. They were dubbed P-70, P-71, P-72, and P-73.
nResearchers 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.n
n"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.
nThe kittens were birthed by P-19, researcher said. They believe she mated with her grandson, P-56, a 3-year-old mountain lion.
nOne solution is in the works, though. Caltransand others are planning to build a wildlife crossing over the 101 Freeway in the Liberty Canyon area.
nSee photos of the litter below.
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