The carcass of a sperm whale washed ashore near San Francisco on Tuesday, and scientists have yet to determine how it died.
Tissue samples were also too old to reveal a cause of death, according to the center.
The remains attracted plenty of looky-loos, who at first told ABC 7 they weren't sure what the carcass was.
Removing the massive, 48-foot-long carcass is also proving to be a challenge.
