Polar bear (Ursus maritimus) mother with twin cubs, Wapusk National Park, Churchill, Hudson Bay, Manitoba, Canada, North America

Polar bear (Ursus maritimus) mother with twin cubs, Wapusk National Park, Churchill, Hudson Bay, Manitoba, Canada, North America

Encaenia, university dignitaries passing in front of the Radcliffe Camera, Oxford, Oxfordshire, England, United Kingdom (U.K.), Europe

Polar bear (Ursus maritimus) mother with twin cubs, Wapusk National Park, Churchill, Hudson Bay, Manitoba, Canada, North America

Punting on The Backs, River Cam, Clare College, Cambridge, Cambridgeshire, England, UK, Europe

School girls, Grecia, Central Highlands, Costa Rica, Central America

Women welding joints during the construction of solar cookers at the Barefoot College in Tilonia, Rajasthan, India. The Barefoot College is a worldwide charity, founded by Bunker Roy, its aims are, education, drinking water, electrification through solar power, skill development, health, women empowerment and the upliftment of rural people. Solar cookers save women having to walk to the froest to cut down wood for cooking, thus saving the forests, and a daily chore for woman.

Women welding joints during the construction of solar cookers at the Barefoot College in Tilonia, Rajasthan, India. The Barefoot College is a worldwide charity, founded by Bunker Roy, its aims are, education, drinking water, electrification through solar power, skill development, health, women empowerment and the upliftment of rural people. Solar cookers save women having to walk to the froest to cut down wood for cooking, thus saving the forests, and a daily chore for woman.

Women welding joints during the construction of solar cookers at the Barefoot College in Tilonia, Rajasthan, India. The Barefoot College is a worldwide charity, founded by Bunker Roy, its aims are, education, drinking water, electrification through solar power, skill development, health, women empowerment and the upliftment of rural people. Solar cookers save women having to walk to the froest to cut down wood for cooking, thus saving the forests, and a daily chore for woman.

Captain Oliver Kruess (L) and Expedition Leader Tim Soper (R) from the Lindblad Expedition ship National Geographic Explorer in Antarctica

Boy doing homework with use laptop

Man wearing surfer clothes walking sand from

Portrait of black ethnic girl smiling early in the morning going to college on back to school

Schoolgirl walking city park

Group of adventure tourists spelunking in Actun Tunichil Muknal cave, central Belize.

A Father Helps His Small Daughter

A young mom teaching her baby daughter to walk in a park on a beautiful warm sunny day, Edmonton, Alberta, Canada

A mother teaching her baby daughter how to walk in a city park on a warm fall afternoon: Edmonton, Alberta, Canada

A father walks and holds hands with his young son and daughter on a farm, Edmonton, Alberta, Canada

Cow moose (Alces alces) with calves rests on green grass in East Anchorage, Alaska's State mammal, South-central Alaska, Alaska, United States of America

A mother teaching her baby daughter how to walk in a city park on a warm fall afternoon: Edmonton, Alberta, Canada

Senior man assisting granddaughter (8-9) horseback riding in ranch

Senior man assisting granddaughter (8-9) horseback riding in ranch

Mother supporting baby girl to walk

Father supporting baby girl to walk

Mother holding baby girl's hands to help her walk, outdoors

Mother helping baby girl to walk

Child holding father's hand