Researchers used a gene-editing technique called CRISPR to fix a mutation in some embryos, but it will be a while before the practice is widespread.
Sperm count in men from Western countries has been declining for decades, according to a new study.
For the first time, scientists successfully cryopreserved fish embryos.
Time has slipped away for a Colorado woman hoping to preserve her late boyfriend’s legacy.
A Highlands Ranch woman is struggling to find someone to help her preserve sperm from her deceased boyfriend.
Chicago Bulls star Pau Gasol joins a growing list of Olympic athletes considering freezing their sperm if selected to play in Rio de Janeiro.
A study published in the journal Applied Economic Letters says women prefer "intellectual, methodical, calm and shy" sperm donors over "extroverts."