Women’s Cervical Mucus Prefers Some Sperm Over Others 
Women’s Cervical Mucus Prefers Some Sperm Over Others 
In human male-female pairs with a less similar suite of genes for human leukocyte antigens, sperm fare better when exposed to cervical mucus.
Women’s Cervical Mucus Prefers Some Sperm Over Others 
Women’s Cervical Mucus Prefers Some Sperm Over Others 

In human male-female pairs with a less similar suite of genes for human leukocyte antigens, sperm fare better when exposed to cervical mucus.

In human male-female pairs with a less similar suite of genes for human leukocyte antigens, sperm fare better when exposed to cervical mucus.

gamete
Squirmy Sperm
Squirmy Sperm
Kerry Grens | Nov 12, 2015
Scientists observe another form of locomotion for male gametes, akin to a snake’s slither.
Inferior Sperm
Inferior Sperm
Bob Grant | Feb 5, 2015
A study in an African bird species sheds light on age-related gamete decline.
Our own 60 mutations
Jef Akst | Jun 15, 2011
New estimates of human mutation suggest that each of us harbor approximately 60 novel genetic mutations.