In the 1940s, scientists at the recently established National Cancer Institute were trying to breed mice that could inform our understanding of cancer, either because they predictably developed ...

Inbreeding has long been identified as a major threat to the survival of mountain lions living in the isolated habitat of the Santa Monica Mountains, and biologists said on Wednesday that they have ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. The Santa Monica Mountains National Park ...

THOUSAND OAKS (CBSLA) — For the first time, a mountain lion has been found with physical abnormalities caused by inbreeding due to the small population of native big cats in the Santa Monica Mountains ...

LOS ANGELES (KTLA) — Scientists who have been studying Santa Monica Mountains’ dozens of cougars for the past 18 years have made a “grave discovery” linked to the animals’ chances of survival, ...