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Japanese Macaques mating, Kinkazan Island, Japan
Japanese Macaques mating, Kinkazan Island, Japan
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Japanese Macaques mating, Kinkazan Island, Japan
Japanese Macaques mating, Kinkazan Island, Japan
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Human sperm, masses swimming around, wide pan
Human sperm, masses swimming around, wide pan
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MS View Olive Ridley turtles at ocean surface / Nosara, Guanacaste, Costa Rica
MS View Olive Ridley turtles at ocean surface / Nosara, Guanacaste, Costa Rica
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Human sperm swimming, noisy background, Phase contrast
Human sperm swimming, noisy background, Phase contrast
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Human sperm, masses swimming around, wide locked off
Human sperm, masses swimming around, wide locked off
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Human sperm swimming, close up, Phase contrast
Human sperm swimming, close up, Phase contrast
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Human sperm swimming, track across, Phase contrast
Human sperm swimming, track across, Phase contrast
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Human sperm, medium close up lots sperm swimming around. Interference contrast.
Human sperm, medium close up lots sperm swimming around. Interference contrast.
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Human sperm swimming, close up, Phase contrast
Human sperm swimming, close up, Phase contrast
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Human sperm swimming, close up, Phase contrast
Human sperm swimming, close up, Phase contrast
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Human sperm swimming, close up, Phase contrast
Human sperm swimming, close up, Phase contrast
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Human sperm swimming, noisy background, Phase contrast
Human sperm swimming, noisy background, Phase contrast
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Peacock (Pavo cristatus) male displays, turns to right, courtship, UK
Peacock (Pavo cristatus) male displays, turns to right, courtship, UK
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Human sperm, single sperm swimming, makes good progress
Human sperm, single sperm swimming, makes good progress
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Human sperm swimming, close up, Phase contrast
Human sperm swimming, close up, Phase contrast
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Peacock (Pavo cristatus) male displays, turns to right, courtship, UK
Peacock (Pavo cristatus) male displays, turns to right, courtship, UK
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Human sperm, medium lots sperm swimming around, shows shape of heads
Human sperm, medium lots sperm swimming around, shows shape of heads
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Human sperm swimming, close up, Phase contrast
Human sperm swimming, close up, Phase contrast
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Human sperm swimming, close up, Phase contrast
Human sperm swimming, close up, Phase contrast