trouble images - Joel Sartore

An Australasian swamphen or pukeko (Porphyrio melanotus) in a shooting tent at the Kiwi Birdlife Park in Queenstown, New Zealand.

A young boy is scolded by his mother, Lincoln, Nebraska.

A woman uses a nebulizer on her son who was having trouble breathing at their home in Lincoln, Nebraska.

A woman uses a nebulizer on her son who was having trouble breathing at their home in Lincoln, Nebraska.

A 4-year-old boy cries as he sits in ‘Time Out.’

A 4-year-old boy cries as he sits in ‘Time Out.’

A curious boy looks at slides in his father’s office.

National Geographic Photographer and Speaker