extinct: Will men become extinct? Scientists warn the possibility is huge; cite this reason - The Economic Times
Scientists have warned that men may become extinct due to the deterioration of the Y chromosome, which is primarily found in testicles and is essential for determining male sex.

Scientists warn men could become extinct due to 'testicle mutations'
After 180million years, the Y chromosome has continued to deteriorate, leaving the future of men unknown as experts say testicles play a huge role in cultivating the DNA component