Sept. 30, 2022 — The adage that the fastest, strongest sperm is the one that fertilizes the egg is being called into question after new research suggested that teamwork is a more powerful reproductive driver than survival of the fittest.
It is a long, challenging swim through the female reproductive tract that male sperm navigate, and they have a much better chance of reaching the egg if they swim together in clusters, report researchers from North Carolina A&T State University and Cornell University.
The investigators observed that sperm swim together in groups as they make their way through the thick yet elastic…