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Fertilization is the epic story of a single sperm facing incredible odds
受精是一個蝌蚪面臨著難以想象的困難的史詩故事
To unite with an egg and form a new human life it is the story of all of us
與卵子結合，形成一個新的人類生命，這也是我們人類的故事
During sexual intercourse about 300 million sperm enter the vagina
在性交過程中大約有3億蝌蚪進入陰道內
Soon afterward millions of them will either flow out of the vagina
不久，數百萬蝌蚪要麼流出陰道
or die in its acidic environment
要麼在酸性環境中死掉
Inside the uterus muscular uterine contractions assist the sperm on their journey Toward the egg
明確的是：子宮肌肉收縮可以幫助蝌蚪遊向卵子
However resident cells from the women''s immune system mistaking the sperm for foreign invaders, destroy thousands more
然而，女性的免疫細胞將蝌蚪誤認為是外來侵略者，於是後者成千上萬地卒死
Next half the sperm head for the empty Fallopian Tube while the other half swim toward the Tube containing the unfertilized egg
接下來，一斗向左一半向右，右邊的輸卵管空蕩蕩
now
現在
only a few thousand remain
只剩下幾千條好漢了
Inside the Fallopian Tube tiny cilia pushed the egg toward the Uterus
花開兩朵各表一枝：鏡頭切到輸卵管內，小纖毛將卵推向子宮
To continue the sperm must surge against this motion to reach the egg
蝌蚪不得不逆著纖毛擺的方向湧向卵子
Some sperm get trapped in the cilia and die
一些蝌蚪會被困在纖毛中卒死
Which triggers their acrosomes to release digestive enzymes
此舉觸發了它們的頂體釋放消化酶
enabling the sperm to burrow into the layer
方便蝌蚪鑽入透明帶內層
Inside the Zona Pellucida is a narrow fluid filled space just outside the egg cell membrane
那是一個狹窄的充滿液體的空間，就附著在卵子的細胞膜的外緣
The first sperm to make contact will fertilize the egg
此時唯有冠軍蝌蚪能如願以償與卵子合體
After a perilous journey and against incredible odds a single sperm attaches to the egg cell membrane
歷經此段危險的旅程，冠軍蝌蚪終於附著在卵子的細胞膜上了
Within a few minutes their outer membranes fuse and the egg pulls the sperm inside
幾分鐘的時間裡，它倆的外膜融合，卵子更將蝌蚪吸入體內
This event causes changes in the egg Membrane that prevent other sperm from attaching to it
此次融合將導致卵子膜發生變化，排斥其他蝌蚪與她合體
Next the egg releases chemicals that push other sperm away from the egg
緊接著，卵子將釋放化學物質，將其他蝌蚪推開
and create an impenetrable fertilization membrane
並形成一張難以穿透的受精膜
As the reaction spreads outward the Zona Pellucida hardens trapping any sperm unlucky enough to be caught inside
當此反應向外擴散時，透明帶就會硬化，把所有不幸的蝌蚪困住
Outside the egg, sperm are no longer able to attach to the Zona, Pellucida
卵子蛋的外面，蝌蚪們再無能夠附著在透明帶上了
Meanwhile inside the egg the tightly packed male genetic material spreads out
同時在卵子蛋內部，緊密堆積的雄性遺傳物質擴散開來
a new Membrane forms around the genetic material creating the male pronucleus
一張新的膜在遺傳物質周圍形成，即雄性原核
Inside the genetic material reforms into 23 chromosomes
原核內遺傳物質轉化成23條染色體
the female genetic material awakened by the fusion of the sperm with the egg finishes dividing
冠軍蝌蚪與卵子蛋的融合喚醒了雌性遺傳物質的分裂
resulting in the female pronucleus which also contains 23 chromosomes
導致雌性原核也含有23條染色體
and now the cilia and the Fallopian Tube gently sweep the Zygote toward the uterus
此刻纖毛和輸卵管將受精卵輕掃進子宮深處著床
Where he or she will implant in the richer uterine lining
他或她將在營養物質更豐富的子宮內膜著床
Growing and maturing for the next nine months until ready for birth
在接下來的九個月裡發育成熟，直到降生
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