A week-old Hawaiian monk seal pup rests on its mother at a busy Waikīkī beach – and this photographer captured the rare moment without disturbing them

A black sea lion pup resting its head on the sandy head of its mother lying on the beach.

Wildlife photography comes with an important responsibility: never get too close or disturb an animal just to get the perfect shot.

Wildlife and underwater photographer Leighton Lum kept his distance when he captured the special moment between a Hawaiian monk seal named Kaiwi and her young pup on a busy beach in Waikīkī.