It’s Not the Quickest or Strongest Sperm That Wins the Race 

 The fastest sperm rarely fertilizes the egg. Strategy matters more! 

Speed Isn’t Everything

Sperm must endure a harsh journey, not just race to the egg. 

Survival Over Speed 

Sperm work together to break through protective barriers. 

Teamwork Plays a Role 

The egg releases signals that help guide the right sperm. 

Chemical Signals Matter 

The healthiest sperm, not the fastest, has a better chance of winning. 

Genetics Influence Success 

The egg chooses sperm, favoring those with compatible genetics. 

Egg Selection Is Key 

A well-formed sperm with strong DNA is more likely to succeed 

Quality Over Quantity 

Mucus and immune responses filter out weaker sperm. 

Obstacles Slow Sperm Down 

Many factors, including chance, impact which sperm fertilizes the egg. 

Luck and Biology Intersect 

Success isn’t always about speed or strength—strategy and endurance 

Lesson for Students