Guard standing by tank, the Golden Temple, Amritsar, Punjab, India, Asia

Endangered Amazon manatees (Trichechus inunguis) waiting for fresh water in a holding tank, Manaus, Amazonas, Brazil, South America

Endangered Amazon manatees (Trichechus inunguis) waiting for fresh water in a holding tank, Manaus, Amazonas, Brazil, South America

Trout species (currently unidentified) in holding tank

Trout species (currently unidentified) in holding tank

The Perlan building, designed around five huge water tanks that hold geothermally heated water, Reykjavik, Iceland, Polar Regions

The Perlan building, designed around five huge water tanks that hold geothermally heated water, Reykjavik, Iceland, Polar Regions

Golden Temple, voluntary guards, Sikh holy place, Amritsar, Punjab, India, Asia

Close up hand pouring syrup

Man in wheelchair holding caution tape

A Scuba Diver Prepares His Equipment Before Making A Dive, Britannia Beach, Howe Sound, British Columbia, Canada

High angle view of man wearing waders working at a water tank at a fish farm raising trout, holding fish net

Young woman kneeling on sandy beach putting together scuba diving equipment, Jupiter, Florida

Portrait of young woman scuba-diving in sea, Jupiter, Florida

Man carrying scuba gear towards boat, Florida, United States

Man carrying scuba gear towards boat, Florida, United States