Phys.org

Female zebrafish shown to be able to choose which sperm to use to fertilize their eggs

A team of biologists at the University of Padova, in Italy, has found that female zebrafish use their female reproductive fluid (FRF) to choose which sperm to use for fertilizing their eggs. In their ...

Mysteries of Life Series Part 18

For Note blogMysteries of Life Series Part 18How do fish reproduce and pass on life?~Diversity in sex types and reproductive methods, and 'Why can they do it without being taught?'~When we think of ...

Is the center of a Corydoras egg white an unfertilized egg? Breeding methods for beginners and how to raise fry

This page contains Amazon Associate advertisements.When keeping multiple Corydoras, you may suddenly find small eggs lined up on the aquarium glass one day. If left alone, they might be eaten by the ...
AOL

How Male Cichlids Trick Females into Fertilizing Eggs

Aulonocara nyassae, known as the emperor cichlid, is a species of haplochromine Cichlid that is endemic to Lake Malawi in Africa.© Roberto Dani/Shutterstock.com Nature always finds a way, but those ...
Wall Street Journal

Females Stop Sneaky Males From Fertilizing Their Eggs

Females Stop Sneaky Males From Fertilizing Their Eggs The ability to choose a mate for egg fertilization was thought to be limited to species with internal fertilization. But new research on the ...