The researchers looked at the changes in cricket sperm when they come into contact with egg water solution in a controlled setting. They found that the acrosome, a part of sperm essential for fertilization, undergoes specific changes during this process. The acrosome usually has three layers, and through different stages, it swells, extends, fuses, and eventually falls off in a shortened form. Importantly, the structure of the acrosome in sperm from the spermatheca and testes showed no significant differences.