Count images - Joel Sartore

A man counts out change at The Coinery in Lincoln, NE.

A man counts out change at The Coinery in Lincoln, NE.

Two men count out change at The Coinery in Lincoln, NE.

Two men count out change at The Coinery in Lincoln, NE.

Musk oxen are surveyed by helicopter at Nunivak Island, part of the Yukon Delta NWR, Alaska.

Musk oxen are surveyed by helicopter at Nunivak Island, part of the Yukon Delta NWR, Alaska.

Musk oxen are surveyed by helicopter at Nunivak Island, part of the Yukon Delta NWR, Alaska.

Musk oxen are surveyed by helicopter at Nunivak Island, part of the Yukon Delta NWR, Alaska.

National Geographic Photographer and Speaker