The 39-foot gray whale carcass was discovered floating off Marina del Rey on Saturday with most of its head missing.

Two Los Angeles-area boaters on Saturday spotted a juvenile gray whale that had recently been killed by orcas and was missing ...

Two Los Angeles-area boaters on Saturday spotted a juvenile gray whale that had recently been killed by orcas and was missing most of its head. Alisa Schulman-Janiger, director of the ACS-LA Gray ...

Two Los Angeles County boaters on Saturday spotted a juvenile gray whale that had recently been killed by orcas and was missing most of its head. Alisa Schulman-Janiger, director of the ACS-LA ...

The pod of killer whales that showed up Thursday, Jan. 30, have only been documented less than 10 times since 1993.

Two Los Angeles County boaters on Saturday spotted a juvenile gray whale that had recently been killed by orcas and was missing most of its head. Alisa Schulman-Janiger, director of the ACS-LA Gray ...

Huber and Varni, project volunteers, said the orcas, or killer whales, were not present. But killer whale teeth rakes were evident on much of the estimated 25-foot carcass.