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Articles on Reproduction

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Humans and spider monkeys are the only primate species without a penis bone. Chris Makarsky

The human penis is a puzzler, no bones about it

The penis. It comes in so many different shapes and sizes … and that’s just in humans. As you would imagine, different species have very different penises. The males in most mammal species, including cats…
Researchers say women may be able to prolong their fertility in future by having an ovarian tissue transplant. bronx

Slowing the biological clock won’t solve family planning dilemmas

In future, women could remain fertile for longer by undergoing an ovarian tissue transplant, according to paper published this week by American and Danish researchers. The Reproductive Biomedicine paper…
Nanas may contribute more than just hugs and kisses. John McNab

What’s the link between caring grandmas and breast cancer?

A recent study shows that mutations in the “breast cancer genes” BRCA1 and BRCA2 – which increase the risks of breast and ovarian cancers among others – also increase fertility. This is an extraordinary…
Lilting voice? No need to look on the dark side. Bisgrafic

Did Darth Vader have a low sperm count?

Few individuals in the Star Wars universe inspired more fear than the Sith Lord, Darth Vader. But beneath the dark exterior, the commander-formerly-known-as-Anakin-Skywalker might have been hiding a dark…
Women will be the key to dealing with the growth in population. Flickr/PhotograTree

Seven billion reasons to be a feminist

SEVEN BILLION PEOPLE: I had better write fast. Sometime between my deadline to submit this story and the time it goes live, the estimated world population will exceed 7 billion for the first time ever…
Boys’ voices break later if their fathers are absent during adolescence, according to new research. Flickr/Tom A

Boys with absent fathers more likely to become young dads

Boys who grow up without a dad around are more likely to reach puberty later, but father their own children earlier, according to a new study. Researchers from the London School of Economics used data…

The speedy bird catches the girl

While the early bird might catch the worm, it’s the quick bird that gets the ladies. That’s the case for rock ptarmigans…

Sparrows spar by sharing songs

Far from being a harmonious sing-a-long, song-sharing among sparrow populations is actually an aggressive behaviour, akin…
Rejoice, men: you may not need to hold your clock in dismay. purplemattfish

Time trial: is premature ejaculation really a medical condition?

If you’re in a room with 20 random blokes, it’s likely six or seven of them are worried about and unsatisfied with their ability to control their ejaculation during partnered sex. In other words, these…

Males die early for female attention

Male houbura bustards that are particularly exuberant in their attempts to attract female attention have been found to die…
Guess what? It’s not so much size but the shape that matters. Ozchin

Seen one seen them all? More to genitalia than meets the eye

Why should male genitalia be so variable? This problem has puzzled evolutionary biologists for decades. Even to the experts, it can be difficult to tell closely-related species apart just by looking at…
Men’s testosterone decline isn’t quite the same as menopause. Andres Thor

Monday’s medical myth: men also go through menopause

Feeling tired and grumpy? Maybe a litte emotional? If you’re a middle-aged male, these symptoms might be hormone-related, but no, you’re not going through man opause. It’s true that signs of men’s low…

How to clone a clam

Individuals from a group of freshwater clam species are believed to produce genetic clones of themselves during reproduction…

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