National Geographic opens photo contest to amateurs

National Geographic magazine is holding its second “Energizer Ultimate Photo Contest” in which photographers compete to see whose work will be published in a magazine ad for batteries.

The winner also gets a National Geographic Expedition trip for two to the Galapagos Islands. The contest began Wednesday and ends June 30.

Photos must be submitted online at nationalgeographic.com/lithium. The contest has six categories: wildlife, nature, travel, people and cultures, weather and inspiration.

Two finalists in each category will be chosen. From Aug. 14 through Sept. 15, people online will vote in each category. A grand prize winner will be announced Oct. 15.