Man standing outdoors

Ball in maze

Couple holding hands

Man looking up at trees

Couple with arms around large tree

Driftwood sticking up out of the sand at the beach

Toddler crawling on the ground, peeking under crib, side view

Senior woman with adult son looking at his wireless device

Father and toddler blowing bubbles together

Family gathered around laptop computer, little boy typing, parents smiling at camera

Challenger in Space

Boy and Girl Playing at the Beach

Father and Daughter Using Laptop

Girl Using Laptop

Child Holding a Starfish

Mature couple outdoors arm in arm walking up steps, rear view

Woman standing be sea, looking through binoculars

Girl (8-9) touching dead flower in field, close-up of hand

Boy (10-12) holding up baby frog on thumb, smiling (focus on boy)

Moon Over the Earth

Galaxy

Woman pointing in cable car

Smiling girl plaing with bubbles

Petri Dish

Petri Dishes

Man's hands holding test tube and conical flask

Child looking at statue of liberty with binoculars, low angle view

Girl (6-7) holding nautilus shell on beach, close up of hands

Boy (2-4) pointing, smiling, close-up

Boy (2-4) holding toy aeroplane, smiling

Two men standing on dock, low angle view

Children looking at flowers through magnifying glass

Boy looking through binoculars

Man hiking in forest

Boy holding a seashell

Family looking in sand

Africa, Namibia, Mesosaurus tenuidens fossil, elevated view

Africa, Namibia, Mesosaurus tenuidens fossil, full frame

Young man smelling impatiens

Girl smelling flower

Mother helping son with homework

Back view of girls wrapped in towels

Scattered mysterious stone jugs in a forest, Plain of Jars, Phakeo site, Xieng Khuang Province, Laos

Greenland Dog puppy on a tout of discovery

Close-up of a figurine with its hand inside of a globe

High angle view of Nazca lines, Nazca, Peru

Father carrying daughter on shoulders in autumn

Young couple sightseeing