![](http://www.alamy.com/thumbs/6/53E039BA-513C-4C61-AF9A-B3FFCFF7C8D8/F3B4JP.jpg)
Swimming sperm race to impregnate a fertile human egg
Size: 3300px × 2031px
Photo credit: © Aaron Bastin / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: baby, biology, birth, cell, concept, conception, contraception, control, egg, ejaculation, female, fertile, fertility, fertilization, fertilize, fluid, genetics, health, human, impregnate, insemination, life, medical, micro, microscopic, miracle, motherhood, orgasm, ova, ovary, ovulation, parent, pregnancy, pregnant, reproduction, research, science, seed, semen, seminal, sex, sperm, spermatozoa, swimming, winner