A woman was bitten by a sea lion when she was swimming in the waters at San Francisco's Aquatic Park in the fourth similar attack in about one month, the San Francisco Fire Department (SFFD) said. All of the attacks have occurred in Aquatic Park Cove, a popular spot for swimmers off the city's north coast.
There were two reported sea lion attacks back in December 2017. A retired fire paramedic was also swimming in the area at the time and witnessed the attack, fire officials said.
The friend, Alice Ma, told the San Francisco Chronicle that the sea lion "chomped down on" the swimmer's knee and pulled.
Sea lions and harbor seals are powerful enough to seriously harm a swimmer, according to Claire Simeone, a veterinarian at the Marine Mammal Center in the Marin Headlands, who has studied bites by the animals. She survived the dramatic attack, which was captured on video.