Thousands of vibrantly red crabs have washed ashore at Imperial Beach.
The crabs were visible by the NBC 7 news chopper just before 11 a.m. Wednesday.
It wasn't immediately clear what prompted them to gather so abundantly at Imperial Beach. A similar phenonmenon happened last June in Ocean Beach.
Experts told The Los Angeles Times at the time that the tiny red crabs normally spend their time in the water off Baja California and normally hide on sandy ocean bottoms.