SANTA MONICA (CBSLA) — A 3-year-old mountain lion that lives in the Santa Monica Mountains recently gave birth to two boys and a girl.

The radio-collared mountain lions, distinguished by tagging to help officials monitor animal movement for research, don’t have names as we’re used to seeing with our own pets.

READ MORE: IATSE Hollywood Workers Inch Closer To Strike, United Auto Workers Walk Out

To the National Park Service, the mother mountain lion goes by P-54 and the presumed father is P-63. Both cats were captured north of the 101 Freeway in the Simi Hills.

Biologists believe they were first-time parents to the three kittens.

P-54’s den of kittens found May 2020. (Courtesy: National Park Service)

Over the past four months, GPS tracking showed that the new mom was repeatedly found in the same location as the only male adult male radio-collared mountain lion living in the Santa Monica Mountains over two days, which typically means they are mating.

READ MORE: 2 Men Arrested In 2019 Murder Of Jeffrey Cheng; Body Found In Trunk Of Car Parked In Stanton

About two months after, researchers noticed movements that indicated that the female mountain lion was either feeding at a kill site or giving birth. The latter turned out to be the case.

RELATED: Commission Votes In Favor Of Declaring SoCal Mountain Lions An Endangered Species

All three kittens, now named P-82, P-83 and P-84, all appeared healthy. Their ears were tagged for future identification and samples were taken for genetic testing.

Biologists say the presumed father may have brought much-needed genetic diversity to the Santa Monica Mountains.

Researchers have expressed concern about how inbreeding could put mountain lion populations in danger, saying in a 2016 finding that if nothing changes, the cats in the Santa Monica Mountains could disappear within 50 years.

MORE NEWS: Dodgers vs Braves: What To Expect In Game 1 Of NLCS, Max Muncy Injury Update

The National Park Service has been studying mountain lions in and around the Santa Monica Mountains since 2002.