11925028 - Swimming human sperm11938524 - Shield bugs mating11938348 - Picking a raspberry11938345 - Picking a raspberry11936545 - Raspberry flower stamens, SEM11925025 - Swimming human sperm11920192 - Fertilisation11920191 - Fertilisation12497153 - Ostrich mating, Kenya11926733 - Male foetus in the womb11926579 - Glass frogs mating11926271 - Cape fur seals, Namibia11926260 - Cape fur seals, Namibia11935756 - Female damselfly laying eggs11933418 - Human sperm under microscope11933416 - Human sperm under microscope11923265 - Clark's anemone fish11922139 - Razor wrasse couple11937758 - Grasshoppers mating11925026 - Swimming human sperm12497137 - Ostrich mating, Kenya11939599 - Male erection, thermogram footage11935758 - Female damselfly laying eggs11926272 - Cape fur seals, Namibia11926257 - Cape fur seals, Namibia11925032 - Swimming human sperm11936061 - Pollen grain formation11935372 - Human sperm11931738 - Damselflies laying eggs12497150 - Ostrich courtship, Kenya11932103 - Bur-reed flowers11931761 - Erecting penis, thermography11930213 - Brown stink bugs mating11925820 - Damselflies mating11925033 - Swimming human sperm11925030 - Swimming human sperm11933414 - Human sperm under microscope11926581 - Glass frogs mating11926423 - Sperm cells11925024 - Swimming human sperm12497129 - Ostrich courtship, Kenya12328742 - Human egg and sperm11925055 - Male body organs12497141 - Ostrich courtship, Kenya11925072 - Male reproductive system11924976 - Male organs11925039 - Male body organs11925037 - Male reproductive system11921518 - Sperm production site, SEM11930507 - Abutilon pollen, SEM11921469 - Clematis montana pollen, SEM11925062 - Male reproductive system11939551 - Male foetus in the womb11925058 - Male organs12497146 - Ostrich courtship, Kenya11925043 - Male reproductive system11933984 - Human fertilisation11924989 - Male reproductive system11924975 - Male organs11939549 - Male foetus in the womb11925054 - Male organs11939547 - Male foetus in the womb11925048 - Male reproductive system11933985 - Human fertilisation11939546 - Male foetus in the womb11933983 - Human fertilisation11939550 - Male foetus in the womb