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    Sperm cells in seminiferous tubules — Stock Photo
    Sperm cells in seminiferous tubules
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa. — Stock Photo
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa.
    Coloured scanning electron micrograph (SEM) of an anther (male reproductive part) from a bay tree (Laurus nobilis) flower. — Stock Photo
    Coloured scanning electron micrograph (SEM) of an anther (male reproductive part) from a bay tree (Laurus nobilis) flower.
    Human Fertilisation, computer illustration — Stock Photo
    Human Fertilisation, computer illustration
    Colored scanning electron micrograph of sectioned seminiferous tubule, site of sperm production in human testes. — Stock Photo
    Colored scanning electron micrograph of sectioned seminiferous tubule, site of sperm production in human testes.
    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.
    Geranium pollen grain — Stock Photo
    Geranium pollen grain
    Antelope bucks and doe in a grass field during rut; South Dakota, United States of America — Stock Photo
    Antelope bucks and doe in a grass field during rut; South Dakota, United States of America
    Sperm cell, or spermatozoa — Stock Photo
    Sperm cell, or spermatozoa
    Fertilisation of egg cell with spermatozoa, digital illustration. — Stock Photo
    Fertilisation of egg cell with spermatozoa, digital illustration.
    Close-up illustration of colored pollen grain of mimosa plant. — Stock Photo
    Close-up illustration of colored pollen grain of mimosa plant.
    Fertilisation of egg cell with spermatozoa, digital illustration. — Stock Photo
    Fertilisation of egg cell with spermatozoa, digital illustration.
    Fertilisation of egg cell with spermatozoa, digital illustration. — Stock Photo
    Fertilisation of egg cell with spermatozoa, digital illustration.
    Sperm cell, or spermatozoa — Stock Photo
    Sperm cell, or spermatozoa
    Complex mucosal folding of seminal vesicle — Stock Photo
    Complex mucosal folding of seminal vesicle
    Pollen grains of a common daisy — Stock Photo
    Pollen grains of a common daisy
    Immature dog sperm — Stock Photo
    Immature dog sperm
    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
    Flowering currant pollen — Stock Photo
    Flowering currant pollen
    Fertilisation of egg cell with spermatozoa, digital illustration. — Stock Photo
    Fertilisation of egg cell with spermatozoa, digital illustration.
    Sperm in a fallopian tube. Coloured composition scanning electron micrograph (SEM) of human sperm travelling through a fallopian tube (oviduct) of a female — Stock Photo
    Sperm in a fallopian tube. Coloured composition scanning electron micrograph (SEM) of human sperm travelling through a fallopian tube (oviduct) of a female
    Sperm cells, abstract digital illustration. — Stock Photo
    Sperm cells, abstract digital illustration.
    Close-up illustration of colored pollen grain of mimosa plant. — Stock Photo
    Close-up illustration of colored pollen grain of mimosa plant.
    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
    Phlox pollen grain — Stock Photo
    Phlox pollen grain
    Clematis montana pollen — Stock Photo
    Clematis montana pollen
    Human sperm cells, abstract computer illustration. — Stock Photo
    Human sperm cells, abstract computer illustration.
    Human sperm cells, abstract computer illustration. — Stock Photo
    Human sperm cells, abstract computer illustration.
    Artwork of human fertilization — Stock Photo
    Artwork of human fertilization
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa. — Stock Photo
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa.
    Sperm fertilising an egg — Stock Photo
    Sperm fertilising an egg
    Male reproductive system, illustration. — Stock Photo
    Male reproductive system, illustration.
    Skimmia sp. pollen grain — Stock Photo
    Skimmia sp. pollen grain
    Sperm in a fallopian tube. Coloured composition scanning electron micrograph (SEM) of human sperm travelling through a fallopian tube (oviduct) of a female — Stock Photo
    Sperm in a fallopian tube. Coloured composition scanning electron micrograph (SEM) of human sperm travelling through a fallopian tube (oviduct) of a female
    Abutilon sp. pollen grain — Stock Photo
    Abutilon sp. pollen grain
    Sperm fertilising an egg — Stock Photo
    Sperm fertilising an egg
    Rapeseed pollen grain — Stock Photo
    Rapeseed pollen grain
    Organs comprising male reproductive system — Stock Photo
    Organs comprising male reproductive system
    Three dimensional medical illustration of male lymphatic system and reproductive organs — Stock Photo
    Three dimensional medical illustration of male lymphatic system and reproductive organs
    Organs comprising male reproductive system — Stock Photo
    Organs comprising male reproductive system
    Fertilisation of egg cell with spermatozoa, digital illustration. — Stock Photo
    Fertilisation of egg cell with spermatozoa, digital illustration.
    Rapeseed pollen grain — Stock Photo
    Rapeseed pollen grain
    Angel trumpets pollen — Stock Photo
    Angel trumpets pollen
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa. — Stock Photo
    Digital conceptual illustration of fertilisation of egg cell with spermatozoa.
    Male hand holding ultrasound transducer. — Stock Photo
    Male hand holding ultrasound transducer.
    Organs of reproductive system — Stock Photo
    Organs of reproductive system
    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
    Human sperm cells, abstract computer illustration. — Stock Photo
    Human sperm cells, abstract computer illustration.
    Three dimensional medical illustration of male reproductive organs — Stock Photo
    Three dimensional medical illustration of male reproductive organs
    Bottlebrush pollen grain — Stock Photo
    Bottlebrush pollen grain
    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.
    Pollen grains of mimosa flower, digital illustration. — Stock Photo
    Pollen grains of mimosa flower, digital illustration.
    Fertilisation of egg cell with spermatozoa, digital illustration. — Stock Photo
    Fertilisation of egg cell with spermatozoa, digital illustration.
    Colored scanning electron micrograph of sectioned seminiferous tubule, site of sperm production in human testes. — Stock Photo
    Colored scanning electron micrograph of sectioned seminiferous tubule, site of sperm production in human testes.
    Close-up illustration of pollen grain of mimosa and mimosa flowers. — Stock Photo
    Close-up illustration of pollen grain of mimosa and mimosa flowers.
    Close-up illustration of colored pollen grain of mimosa plant. — Stock Photo
    Close-up illustration of colored pollen grain of mimosa plant.
    Daisy pollen grain — Stock Photo
    Daisy pollen grain
    Sperm fertilizing an egg cell — Stock Photo
    Sperm fertilizing an egg cell
    Pollen grains of mimosa flower, digital illustration. — Stock Photo
    Pollen grains of mimosa flower, digital illustration.
    Three dimensional medical illustration of male reproductive system with veins and arteries — Stock Photo
    Three dimensional medical illustration of male reproductive system with veins and arteries