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    This Lei Triggerfish (Sufflamen bursa) with partially erected dorsal fin spines was photographed underwater just offshore of Kihei, Maui, Hawaii, USA. It is circling above a small area suggesting that this is a courtship display; Maui, Hawaii, United — Stock Photo
    This Lei Triggerfish (Sufflamen bursa) with partially erected dorsal fin spines was photographed underwater just offshore of Kihei, Maui, Hawaii, USA. It is circling above a small area suggesting that this is a courtship display; Maui, Hawaii, United
    Digital illustration showing vaginitis caused by Candida albicans fungus and close-up of yeast cells. — Stock Photo
    Digital illustration showing vaginitis caused by Candida albicans fungus and close-up of yeast cells.
    Illustration of red human embryo on black background at pregnancy stage of week 23. — Stock Photo
    Illustration of red human embryo on black background at pregnancy stage of week 23.
    Fungal cells and sporangia — Stock Photo
    Fungal cells and sporangia
    Malassezia skin fungus, computer illustration — Stock Photo
    Malassezia skin fungus, computer illustration
    Magnified digital illustration of blastocyst cell. — Stock Photo
    Magnified digital illustration of blastocyst cell.
    Pregnant woman meditating outdoors — Stock Photo
    Pregnant woman meditating outdoors
    Parasites attacking female egg cell, digital illustration. — Stock Photo
    Parasites attacking female egg cell, digital illustration.
    3d illustration of sperm cells approaching egg cell on colorful blue background. — Stock Photo
    3d illustration of sperm cells approaching egg cell on colorful blue background.
    View of fetus at 8 weeks — Stock Photo
    View of fetus at 8 weeks
    Coloured scanning electron micrograph (SEM) of a wood anemone (Anemone nemerosa) anther (male reproductive part) covered in pollen. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a wood anemone (Anemone nemerosa) anther (male reproductive part) covered in pollen.
    Eight-cell embryo — Stock Photo
    Eight-cell embryo
    Human sperm cells, abstract computer illustration. — Stock Photo
    Human sperm cells, abstract computer illustration.
    Human embryonic stem cell on pin tip, conceptual digital artwork. — Stock Photo
    Human embryonic stem cell on pin tip, conceptual digital artwork.
    Biotechnology or biotech, concept of creation, division and cellular development. High organic technology with productive purposes — Stock Photo
    Biotechnology or biotech, concept of creation, division and cellular development. High organic technology with productive purposes
    Fertilisation of egg cell with spermatozoa, digital illustration. — Stock Photo
    Fertilisation of egg cell with spermatozoa, digital illustration.
    Fungal fruiting bodies, digital illustration. — Stock Photo
    Fungal fruiting bodies, digital illustration.
    Prevention of transplacental HIV transmission to human embryo from infected mother, conceptual illustration. — Stock Photo
    Prevention of transplacental HIV transmission to human embryo from infected mother, conceptual illustration.
    Abstract fungus, scientific digital illustration. — Stock Photo
    Abstract fungus, scientific digital illustration.
    Computer illustration showing human hair with dandruff and close-up view of microscopic fungi Malassezia furfur associated with seborrhoeic dermatitis and dandruff formation — Stock Photo
    Computer illustration showing human hair with dandruff and close-up view of microscopic fungi Malassezia furfur associated with seborrhoeic dermatitis and dandruff formation
    Human sperm cells and egg cell — Stock Photo
    Human sperm cells and egg cell
    Primrose (Primula sp.) pollen grain, coloured scanning electron micrograph (SEM). — Stock Photo
    Primrose (Primula sp.) pollen grain, coloured scanning electron micrograph (SEM).
    3d illustration of sperm cell frozen into ice cube. — Stock Photo
    3d illustration of sperm cell frozen into ice cube.
    Fertilisation of egg cell with spermatozoa, digital illustration. — Stock Photo
    Fertilisation of egg cell with spermatozoa, digital illustration.
    Dividing bacteria on tissue surface — Stock Photo
    Dividing bacteria on tissue surface
    Illustration of human foetus on week 6 on white background. — Stock Photo
    Illustration of human foetus on week 6 on white background.
    View of Fetus at 7 weeks — Stock Photo
    View of Fetus at 7 weeks
    Fungal cells and sporangia — Stock Photo
    Fungal cells and sporangia
    Human fetus developing at week 39, computer illustration. — Stock Photo
    Human fetus developing at week 39, computer illustration.
    Pregnant woman with hands on tummy — Stock Photo
    Pregnant woman with hands on tummy
    Human Embryo at 5 weeks — Stock Photo
    Human Embryo at 5 weeks
    Fungal cells and sporangia — Stock Photo
    Fungal cells and sporangia
    Visual rendering of Pollen — Stock Photo
    Visual rendering of Pollen
    Human cell, computer illustration — Stock Photo
    Human cell, computer illustration
    Coloured scanning electron micrograph of pollen grains from Verbena bonariensis perennial plant. — Stock Photo
    Coloured scanning electron micrograph of pollen grains from Verbena bonariensis perennial plant.
    Normal human egg — Stock Photo
    Normal human egg
    View of Fetus at 7 weeks — Stock Photo
    View of Fetus at 7 weeks
    Female reproductive system and Gardnerella vaginalis bacteria attached to vaginal epithelial cells causing bacterial vaginosis, digital illustration. — Stock Photo
    Female reproductive system and Gardnerella vaginalis bacteria attached to vaginal epithelial cells causing bacterial vaginosis, digital illustration.
    Coloured scanning electron micrograph (SEM) of immature dog sperm. — Stock Photo
    Coloured scanning electron micrograph (SEM) of immature dog sperm.
    3d illustration of sperm cells moving towards human womb. — Stock Photo
    3d illustration of sperm cells moving towards human womb.
    Human fetus developing at week 24, computer illustration. — Stock Photo
    Human fetus developing at week 24, computer illustration.
    Human sperm cells, abstract computer illustration. — Stock Photo
    Human sperm cells, abstract computer illustration.
    Coho Salmon, also known as Silver Salmon (Oncorhynchus kisutch) in the act of spawning in an Alaskan stream during autumn; Alaska, United States of America — Stock Photo
    Coho Salmon, also known as Silver Salmon (Oncorhynchus kisutch) in the act of spawning in an Alaskan stream during autumn; Alaska, United States of America
    Illustration of silhouette of pregnant woman and 5 week foetus. — Stock Photo
    Illustration of silhouette of pregnant woman and 5 week foetus.
    Candida albicans infected medical catheter — Stock Photo
    Candida albicans infected medical catheter
    Balamuthia mandrillaris amoeba, computer illustration — Stock Photo
    Balamuthia mandrillaris amoeba, computer illustration
    Pregnant woman stretching on sofa — Stock Photo
    Pregnant woman stretching on sofa
    Computer illustration of unicellular yeast fungus Candida auris. — Stock Photo
    Computer illustration of unicellular yeast fungus Candida auris.
    Conceptual digital illustration of human blastocyst on needle tip. — Stock Photo
    Conceptual digital illustration of human blastocyst on needle tip.
    Digital illustration showing vaginitis caused by Candida albicans fungus and close-up of yeast cells. — Stock Photo
    Digital illustration showing vaginitis caused by Candida albicans fungus and close-up of yeast cells.
    Bag containing donated human blood, placenta and umbilical cord. — Stock Photo
    Bag containing donated human blood, placenta and umbilical cord.
    Illustration of human foetus on week 25 term. — Stock Photo
    Illustration of human foetus on week 25 term.
    3d illustration of human sperm cells in reproductive process. — Stock Photo
    3d illustration of human sperm cells in reproductive process.
    Blastocyst structure, conceptual computer artwork. — Stock Photo
    Blastocyst structure, conceptual computer artwork.
    Human fetus developing at week 22, computer illustration. — Stock Photo
    Human fetus developing at week 22, computer illustration.
    3d illustration of sperm cell frozen into ice cube. — Stock Photo
    3d illustration of sperm cell frozen into ice cube.
    Penicillium fungus, Computer illustration — Stock Photo
    Penicillium fungus, Computer illustration
    Fungal fruiting bodies, digital illustration. — Stock Photo
    Fungal fruiting bodies, digital illustration.
    Pollen grains of mimosa flower, digital illustration. — Stock Photo
    Pollen grains of mimosa flower, digital illustration.
    Fertilization of human egg — Stock Photo
    Fertilization of human egg