Wildebeests (Connochaetes taurinus) and Common Zebras (Equus quagga) with reflections crossing stream near Ndutu in Ngorongoro Crater Conservation Area; Tanzania

Female hiker on wooden bridge over a rushing creek in the woods; Lanserbach, Austria

Male Chum Salmon (also known as Dog salmon, Oncorhynchus keta) courts a female by crossing over her tail in an Alaskan stream during the summer; Alaska, United States of America

Carrying bicycle across water

Family crossing Bear Creek on hiking trail leading to the Ice Cave at Bixby State Preserve, near Edgewood; Iowa, United States of America

Male Hiker Sitting On A Rock With Glacier On Mountain Side Streaming Down Into A Reflective Mountain Pond With Blue Sky; Field British Columbia Canada

Female hiker crosses a wooden foot bridge on her way to Gulkana Glacier; Alaska, United States of America

A woman jumps over a swift glacial stream with the aid of a pole near Gulkana Glacier; Alaska, United States of America

A courting male Coho Salmon, also known as Silver Salmon (Oncorhynchus kisutch) crosses over a female in an Alaskan stream during the autumn; Alaska, United States of America

A man snowshoeing in the Eagle River Valley on a sunny winter day with Mount Yukla in the background, Chugach State Park; Alaska, United States of America

Adventurer exploring a desert canyon narrows, Capitol Reef National Park; Utah, United States of America

People-Young Adult (18-25)

A pair of Utahraptors crossing a stream.

Businessman walking on a bridge across the river

Flower, Watercolor painting of beauty in nature

An Archaeopteryx on a log above a stream.

Three men crossing a bridge over a river

Metal material shaped eight

A man building a bridge to get over water

Metal materials crossing inside ball of glass

Small shed in the middle of a lake, surrounded by mountains, grass, and trees

Gold and silver rings crossing on black and white checkered floor

A family going hiking with others following behind

A woman leaping on stones across a stream

Cross hiking

Reflection of a hiker crossing a stream