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.
Many animals, including humans, form long-term partnerships, but some are same-sex, suggesting they're not all about raising offspring but some other form of cooperation.
Scientists have tended to think of nonhuman sexual behaviour as being all about reproduction. In fact, there is far more ha ha hee hee than we give animals credit for.
Since science made it possible to research manipulating the cells that are linked to reproduction, the naysayers have carried the day. But how solid are their objections really?
I sometimes forget that people can feel embarrassed listening to me talk about my research on sperm. But often those same people can also be a source of amazement and inspiration.