County animal control staff and volunteers were fanning out over the weekend across a densely forested area near the town of Devore in search of Moe the chimpanzee.
A friend of Moe's owners says the chimp escaped Friday from his cage at an animal sanctuary near the town.
Mike McCasland says he thinks Moe may be lurking in a nearby part of the San Bernardino National Forest.
"We could find him in a heartbeat if we could just get a break," McCasland told the Inland Valley Daily Bulletin. "He's somewhere out there."
Moe lived with his owners in their West Covina home until 1999, when the animal bit a police officer and a female visitor.
Owner St. James Davis wasby two chimps who attacked him while visiting Moe at the Bakersfield sanctuary where the animal was living at the time.