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Single Human sperm swimming, big close up, Interference contrast
Single Human sperm swimming, big close up, Interference contrast
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Human sperm, lots swimming, turquoise background
Human sperm, lots swimming, turquoise background
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Human sperm, general shot, includes two-tailed sperm
Human sperm, general shot, includes two-tailed sperm
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Human sperm, medium lots sperm swimming around, pan across. Two tailed sperm on left of frame at end of shot
Human sperm, medium lots sperm swimming around, pan across. Two tailed sperm on left of frame at end of shot
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Human sperm, lots swimming around, locked off
Human sperm, lots swimming around, locked off
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Human sperm, two sperm swimming rather ineffectually
Human sperm, two sperm swimming rather ineffectually
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Single Human sperm swimming, big close up, Interference contrast
Single Human sperm swimming, big close up, Interference contrast
Getty Images
Single Human sperm swimming, big close up, Interference contrast
Single Human sperm swimming, big close up, Interference contrast
Getty Images
MS SLO MO Males edible frogs leaping and calling with inflated vocal sacs / Vieux Pont, Normandy, France
MS SLO MO Males edible frogs leaping and calling with inflated vocal sacs / Vieux Pont, Normandy, France
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HD video greater prairie chickens display on lek northeast Colorado
HD video greater prairie chickens display on lek northeast Colorado
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MS TS Shot of Mimic octopus mating / Lembeh strait, Sulawesi, Indonesia
MS TS Shot of Mimic octopus mating / Lembeh strait, Sulawesi, Indonesia
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Frog, CU brown frog in shallow water, calling, blows out vocal sac, facing left . . .. Panama.
Frog, CU brown frog in shallow water, calling, blows out vocal sac, facing left . . .. Panama.
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Frog, CU brown frog in shallow water, calling, blows out vocal sac, with back to camera. Panama.
Frog, CU brown frog in shallow water, calling, blows out vocal sac, with back to camera. Panama.
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Cabbage Root Fly, CU on cabbage leaf, cleans wings with back legs, UK
Cabbage Root Fly, CU on cabbage leaf, cleans wings with back legs, UK
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MS TS Mimic octopus mating / Lembeh strait, Sulawesi, Indonesia
MS TS Mimic octopus mating / Lembeh strait, Sulawesi, Indonesia
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Polar bear (Ursus maritimus) rolling over and lying on front, near Churchill, Manitoba, Canada
Polar bear (Ursus maritimus) rolling over and lying on front, near Churchill, Manitoba, Canada