The international and US competitions attracted nearly 18,000 entries. The winner is this photo of a grasshopper eating a leaf, by Senne Mensink, 13, from the Netherlands.
Overall winner: Grasshopper eating a leaf

US winner: Mile High Swinging Bridge of Grandfather Mountain, North Carolina

Weird But True category: the thermal pool at Yellowstone park

Runner-up, first place in Weird But True category

Amazing Animals category: an iguana in Bali

Runner up for the first place in the Wild Vacation category: the International Balloon Fiesta in Albuquerque, New Mexico

Runner-up, first place in Dare to Explore category

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First place, US Amazing Animals category, a green tree snake

Second prize, Wild Vacation category, kite surfer

International winner, Wild Vacation category, a child in a rice field

Second prize in the US Dare To Explore category

Second place, Weird But True category in the US, a plane on the face of the moon

US runner-up in Amazing Animals category, praying mantis

International winner, Dare To Explore category

Photograph: Josephine Jennifer Tjahjadie, 11, Indonesia