Ovoviviparous mayfly video

[silver creek]

I did not know this existed.

[ame=http://www.youtube.com/watch?v=gtXX9J7iZQA]Mayfly Eggs Hatching a Minute After Being Laid - YouTube[/ame]

 

[cpiercem]

Wow, that is amazing!

 

[stenacron]

I had no idea that they hatch that fast. Incredible.

 

[silver creek]

The normaly don't hatch that fast because almost all species of female mayfly imagos (spinners) lays eggs shortly after mating and then die. But these mayfly female imago keep the fertilized eggs for several weeks until they mature.