National Park Service researchers say a female and male kittens, named P-59 and P-60, were found by biologists earlier this month in the central portion of the range.
Their mother is P-53, the youngest female in the study to bear offspring at two years old.
Scientists say this is her first litter.
The father is believed to be P-12, the only lion documented crossing into the Santa Monica Mountains from the north.
A biologist with the NPS says if the kittens's father is P-12 it means he is also their grandfather and great grandfather.
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Awwww...