Cross-species insemination reveals mouse sperm ability to locate and cross the fish micropyle
Suma Garibova, Eva Stickler, Fatima Al Ali, Maha A Abdulla, Abbirami Sathappan, Sahar Isa Da'as, Lillian Ghanem, Mohamed Nadhir Djekidel, Rick Portman, Matteo Avella
The paper shows mouse sperm can enter zebrafish eggs through the micropyle but not bind the chorion, revealing conserved mechanisms of gamete interaction.
eLife · Oct 16, 2025Peer-reviewedDevelopmental Biology