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Fertilization - It’s Not a Race,there is a bit of "selective dating" going on

Dandelion Medical Animation

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Even at a microscopic level, there is a bit of "selective dating" going on.
While we’re often taught that fertilization is a frantic race where the fastest sperm wins, modern
science shows it’s actually more complex than that. Instead of pure speed and chance, the process
involves interaction and selection. The human egg isn’t just a passive “waiting” cell. Research shows it
can influence which sperm succeed.
3dmedicalanimation
copyrighted_by_Dandelion _Team

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20 Comments

@DandelionMedicalAnimation Creator 7 months ago Pinned

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@robertcearley 7 months ago

Congratulations to all of the sperm that successfully made it to fertilization to be here just to watch this video.

@resinate 7 months ago

image being rejected down to cell level LOL

@9Ballr 7 months ago

It's nice to know that at least once I was someone's first choice.

@sagbeach1 7 months ago

It’s incredible, and I bet there’s a lot more unbelievable processes which occur that we don’t know about yet.

@lmborfs8654 7 months ago

So twins and multiples really are miracles.. I mean we all are technically, but to grow side by side with another human in one womb and to sometimes share the exact dna is mind blowing.

@Imjustobserving2 7 months ago

Compatibility is even important to our cells. This is why you can’t force chemistry.

@wesleyogilvie8105 7 months ago

If this video proves anything, you weren't put on earth by accident. You were chosen.

@W00JDA 7 months ago

I'M THE CHOSEN ONE!!!

@hasangarmarudi2178 7 months ago

This means that even though your parents said it was an accident, some part of your mother loved you and chose you to be her child.

@vancraven7688 7 months ago

It’s just miraculous to me. How can you not believe there is a greater power that started all of this. Beyond our brain to comprehend is all I can say.

@JustWhattaRuLookinAt 7 months ago

“When you thought you were picky in dating/love, only to find out so is your egg,…. And become even more so with age.”

@Annejie-q8l 7 months ago

That's why maybe some couples can't have kids, but after separation whith other partners they finally get to it...

@rudimorgenstern7966 7 months ago

I like how the miracle is animated so that the viewers could understand the complexity of the merger. It’s a fragile and amazing process indeed.

@denebvegaaltair1146 6 months ago

Huh. This is fascinating. There are cases of women who cannot achieve pregnancy with their partner despite trying for years, and then suddenly a change in partners cause them to get pregnant immediately.

Absolutely fascinating.

@samanthac.349 7 months ago

This video forgets my favorite part of fertilization. The sperm and egg fusion released zinc which causes a little flash of light. It’s a literal spark of life! That is also a helpful step for fertility clinics: the brighter the flash, the higher likelihood that the fertilized cells will become a healthy baby.

@rogerw-interested 7 months ago

makes me love and appreciate my children more. they were chosen for all of us

@AyamiKeiya 7 months ago

Interesting! I always thought the sperm that managed to punch through the eggshell is the winner. Compatibility is the key to everything that's involved in romance.

@pinkdiamonds9137 7 months ago

I’m 14 weeks pregnant after trying with my husband for 4 years (I have PCOS) and this is making me bawl my eyes out 🤣

@prschuster 7 months ago (edited)

It's more accurate to say that the sperm is more mobile than the ovum, instead of being more active. The ovum is not passive. It is chemically very active during and after fertilization, since it has molecules that determine the direction of changes that occur in the embryo, setting the parameters for orientation (front, back, up, down, right left etc.). The ovum provides all the cytoplasm for the developing embryo & fetus. All the tissues must orient themselves with each other in forming organ systems. The sperm functions mainly in contributing chromosomes, and little else.