Mate choices in green swordtails

[Rusty_Shackleford42 157]

Males like thicc females.
Scientists let swordtail fish choose their mates for nine generations; males kept picking larger females while female preferences varied | - The Times of India https://share.google/hGpbKnIrNYYBbvl4A

Perhaps larger females means more and larger fry?

 

[WhistlingBadger39 21]

Or perhaps they like big butts and they cannot lie...

 

[Back in the fold1]

Fascinating . I think I once heard that bigger females are more attractive to men because they are better suited to more and healthier kids . It’s got to be true of all creatures . Survival of the fittest and perpetuation of the species and all that practical rot .