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"physiology"
104 professional editorial images found
#13227831
22 January 2026
A Green Iguana in vivid orange breeding colors clings to a tree branch at Wakodahatchee Wetlands in Delray Beach, Florida, on January 21, 2026. During cold days, these tropical reptiles can freeze and become immobile, sometimes falling from trees as their bodies temporarily shut down to conserve warmth.
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#13227832
22 January 2026
A Green Iguana in vivid orange breeding colors clings to a tree branch at Wakodahatchee Wetlands in Delray Beach, Florida, on January 21, 2026. During cold days, these tropical reptiles can freeze and become immobile, sometimes falling from trees as their bodies temporarily shut down to conserve warmth.
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#13227834
22 January 2026
A Green Iguana in vivid orange breeding colors clings to a tree branch at Wakodahatchee Wetlands in Delray Beach, Florida, on January 21, 2026. During cold days, these tropical reptiles can freeze and become immobile, sometimes falling from trees as their bodies temporarily shut down to conserve warmth.
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#13227837
22 January 2026
A Green Iguana in vivid orange breeding colors clings to a tree branch at Wakodahatchee Wetlands in Delray Beach, Florida, on January 21, 2026. During cold days, these tropical reptiles can freeze and become immobile, sometimes falling from trees as their bodies temporarily shut down to conserve warmth.
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#13227839
22 January 2026
A Green Iguana in vivid orange breeding colors clings to a tree branch at Wakodahatchee Wetlands in Delray Beach, Florida, on January 21, 2026. During cold days, these tropical reptiles can freeze and become immobile, sometimes falling from trees as their bodies temporarily shut down to conserve warmth.
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#12858002
13 October 2025
BUCHAREST, ROMANIA – OCTOBER 9: The 1974 Nobel Prize in Physiology awarded to George Palade and his team is on display at the National History Museum in Bucharest, Romania, on October 9, 2025.
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#12649946
16 August 2025
An American alligator (Alligator mississippiensis), colloquially referred to as a ''gator,'' swims towards a disturbance in the swamp looking for its next meal. The American alligator is an apex predator in swampy areas of the USA and can swim up to 32 kilometers per hour. Adult male American alligators measure 3.4 to 4.5 meters in length and can weigh up to 500 kilograms, with unverified sizes of up to 5.84 meters and weights of 1,000 kilograms.
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#12649949
16 August 2025
An American alligator (Alligator mississippiensis), colloquially referred to as a ''gator,'' swims towards a disturbance in the swamp looking for its next meal. The American alligator is an apex predator in swampy areas of the USA and can swim up to 32 kilometers per hour. Adult male American alligators measure 3.4 to 4.5 meters in length and can weigh up to 500 kilograms, with unverified sizes of up to 5.84 meters and weights of 1,000 kilograms.
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#12486349
19 June 2025
The name "Karolinska Institutet" appears on the facade of a university building in Stockholm, Sweden, on May 6, 2024. The Karolinska Institutet is Sweden's foremost medical university and is internationally recognized for its contributions to medical research and for selecting the Nobel Prize laureates in Medicine.
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#12379393
18 May 2025
University of California students collect insects in a field within Empire Mine State Park in Grass Valley, Calif., on May 10, 2025.
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#12379394
18 May 2025
University of California students collect insects in a field within Empire Mine State Park in Grass Valley, Calif., on May 10, 2025.
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#12379395
18 May 2025
University of California students collect insects in a field within Empire Mine State Park in Grass Valley, Calif., on May 10, 2025.
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#12379396
18 May 2025
University of California students collect insects in a field within Empire Mine State Park in Grass Valley, Calif., on May 10, 2025.
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#12379397
18 May 2025
University of California students collect insects in a field within Empire Mine State Park in Grass Valley, Calif., on May 10, 2025.
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#12379398
18 May 2025
University of California students collect insects in a field within Empire Mine State Park in Grass Valley, Calif., on May 10, 2025.
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#12379399
18 May 2025
University of California students collect insects in a field within Empire Mine State Park in Grass Valley, Calif., on May 10, 2025.
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