The competition to father young is often most intense behind the scenes.
Research shows that the Y chromosome may be able to protect itself from extinction in the short term. But what about in a future where we all reproduce artificially?
What movies tell us is important in a parter – a nice smile or money – are exaggerations of fundamental evolutionary needs that actually do matter.
By exploiting the way yeast cells mate, researchers have figured out a quicker, easier way to identify on- and off-target drug interactions.
Parents' DNA try to manipulate one another in a bid to shape junior in their mould.
Releasing just 100 mice carrying a faulty gene designed to stop them reproducing can remove an entire population of 50,000, a new study shows, paving the way for new eradication efforts.
As the Canadian Fertility and Andrology Society urges the government to consider "compensation" for surrogacy, we need to talk about the implications of this rhetoric for women.
Stephen Hawking thinks we need to leave the planet. Do we?
Sperm that's been to space is good enough to get mice pregnant – and give birth to healthy offspring.
In 1997, scientists announced they'd created a healthy sheep cloned from another ewe's mammary gland cell. Two decades on, the technique is being refined and applied to new challenges.
While most people might think age only affects female fertility, there is growing evidence sperm quality decreases as men age.
Why can we choose some things and not others?
A century from now you're likely to be considered a risk taker if you opt for natural conception and birth rather than IVF and artificial wombs.
Study finds that gene linked to risk-taking is associated with losing your virginity early.
Rotifers are tiny creatures found in ponds or puddles and can reproduce without sex. The theory says they should not have survived so how have they done it?
A set of twins in Vietnam have been found to have different fathers.
It's long been a mystery how queen bees stop their workers from laying eggs. The solution comes from understanding a gene we call Anarchy.
You might be surprised to hear that virgin births are possible - just not in humans. By the reason why remains an evolutionary mystery.
Sexual competition has made sperm the most diverse - and fascinating - cells in the animal kingdom.
Is a woman's longing for a child evolution at work, or social conditioning? And what about those who don't want kids? Are they defying nature? Probably not, as almost everyone wants sex.