Ndlula, Umngani and Khosi — scramble to encircle and shield the two 7-year-old calves, Zuli and Mkhaya, from any possible threats.

Heart-melting video shows African elephants at the San Diego Zoo instinctively forming a protective circle after the earthquake hit Southern California.

The earthquake was felt across San Diego, as well as several areas in Los Angeles, Riverside and San Bernardino counties, including Seal Beach, Claremont, Rancho Cucamonga, Pasadena, Riverside, Temecula, Long Beach, Downey, and Monterey Park. The jolt was followed by a series of aftershocks.