Interesting discovery about the strategy of maintaining the breed of horse striped fish

Scientists at Sheffild University have published an interesting discovery about the strategy of maintaining the breed of zebrafish.

Horse striped fish

They performed an experiment to lock a female and two males into the same tank but separated by a net. One of the two males is the first and the other is smaller. Females can 'smell' the smell of two males but they cannot reach each other within 24 hours. They then contacted the female and the two male fish, the female laid the eggs and the male fish fertilized the eggs laid in the bottom of the tank.

Scientists found that male fish try to approach the nearest female position when it is ready to lay eggs. The closer you go to your children, the greater your chances of fertilizing eggs. When examining the number of fry, they found that as expected, the number of eggs fertilized by the male fish was larger than the amount fertilized by the other male. But the weak males have the best chance of making fathers are the smallest males.

This can be explained because males are smaller in size than wise ones and they are more flexible, they can weave between females and larger males.

This has long been extensively studied in science, especially in genetic studies.