US: Rhino calves explore in San Diego Zoo habitat

Two southern white rhinos explored their habitat at the San Diego Zoo Safari Park on Tuesday, which was designated as World Rhino Day. The two calves encountered impalas, giraffes and African crowned cranes at the zoo's African Plains habitat. Two greater one-horned rhino calves also took mud baths in the habitat. Rhino numbers are dwindling in the wild, primarily due to poaching and habitat loss.