Photos of the Day: The Annual Tomatina Festival and Pope Francis

Jakarta, Indonesia

Indonesian athletes compete in the women’s artistic swimming technical routine at the 2018 Asian Games

Photograph: Martin Bureau/AFP/Getty Images

Adelaide, Australia

A 30-year study led by the Whale and Dolphin Conservation Society with the universities of St Andrews and Exeter found dolphins in Adelaide learned tail-walking from a fellow creature called Billie, who spent time in a delphinium after being rescued from a polluted creek in January 1988. Billie learned tail-walking by observing the performing dolphins and, when released, began performing the trick regularly in the wild

Photograph: Dr Mike Bossley/University of St/PA

Port-au-Prince, Haiti

A boy jumps into the sea while playing with friends near Wharf Soleil

Photograph: Hector Retamal/AFP/Getty Images