Breakthrough in fertilization research! Scientists have decoded the mechanism behind sperm-egg fusion, revealing a "lock and key" phenomenon that's fundamental across all vertebrates. Three proteins on the sperm form a type of key that unlocks the egg, allowing attachment. This discovery could lead to better understanding of infertility and new birth control methods.

Source: https://www.wionews.com/science/sperm-egg-fusion-decoded-like-a-key-that-unlocks-a-gateway-to-attack-to-the-egg-768892