Kallmann syndrome is a rare genetic sexual disorder that is characterised by a late or absent puberty and an impaired sense ...

A new study hammers home how the "survival of the nicest" view makes no sense when it comes to evolution, says Jonathan R.

Since the start of the war, postmortem sperm retrieval was performed on 250 soldiers and security personnel and on 21 ...

The sperm is not a passive supplier of genetic material to the egg. A study from Linköping University, Sweden, shows that ...