148 Scientists Just Captured The Flash of Light That Sparks When a Sperm Meets an Egg posted 1 year ago by aslan_is_0n_the_m0ve 1 year ago by aslan_is_0n_the_m0ve +149 / -1 29 comments share 29 comments share save hide report block hide replies
"For the experiment, the team used a sperm enzyme to activate the egg (fertilising the egg with actual sperm for research purposes is illegal under US federal law)"
6th paragraph from the bottom
Good catch