Create Profile

Creating your profile will enable you to submit photos and stories to get published on News24.

Please provide a username for your profile page:

This username must be unique, cannot be edited and will be used in the URL to your profile page across the entire 24.com network.

Facebook Sign-In

Hi News addict,

Join the News24 Community to be involved in breaking the news.

Log in with Facebook to comment and personalise news, weather and listings.


5 facts about sperm

06 November 2014, 15:53

Nairobi - When it comes to making babies, sperm is a very important factor. There are some really strange and wonderful developments and facts about sperm that you may not know.

1. Why small males have big sperm

The moment the female squid lays her eggs, smaller 'sneaker' males place packages of sperm near her mouth in the hope that their sperm may have a chance of fertilizing the eggs. Researchers found that this sperm is larger than that of the bigger males who mate directly with the female. "Sperm size is likely to be an adaptation to fertilization environment," said Dr Yoko from the University of Tokyo.

2. Giant sperm for little flies

Drosophila bifurca is a species of fruit fly. This little insect may seem insignificant but his sperm can be up to 5.8cm long when uncoiled! The humble fruit fly holds the title of having the longest sperm cells of any organism on Earth.

Read Also: Is your laptop cooking your testicles?

3. Mouse sperm could help infertile couples

Researchers in Japan used embryonic stem cells to grow healthy mouse sperm, a development which could help treat human infertility. The research with mouse sperm could lead to developments where human sperm is grown and used to fertilise a human embryo.

4. What's in sperm?

Did you know that in the average volume of semen produced in a single ejaculation (which varies from 2 to 5 ml) contains citric acid, free amino acids, fructose, enzymes, phosphorylcholine, prostaglandin, potassium, and zinc!

5. Sperm that glows

Watch this amazing video of modified fly semen travelling through a female fly's reproductive system. This could help scientists work out how to treat infertility in humans in the future.

Watch the video here

- Parent24

For the latest on national news, politics, sport, entertainment and more follow us on Twitter and like our Facebook page!

Read News24’s Comments Policy

Comment on this story
Comments have been closed for this article.

Read more from our Users

Submitted by
Cyril Mike Odhiz
Kenyans furious on young lady aft...

A young Kenyan woman is the talk of town after she posted a photo with her elderly lover after a round of steamy sex, or so the photo suggested.  Read more...

Submitted by
Kiplangat langat
Uhuru could be a one term Presid...

Bomet governor Isaac Ruto has said that President Uhuru Kenyatta could be a one term President if he fails to increase allocations to the counties. Read more...

Submitted by
Mody Sammy
35 year old farmer a new milliona...

A 35 year old farmer from Mpeketoni Lamu county has become the latest millionaire in town as she became winner in the ongoing ‘Shinda Mamili na Story Ibambe’. Read more...

Submitted by
Shakila Alivitsa
Leave your past relationship bagg...

Leave your past relationship baggage at the door when you start a new relationship. Read more...

Submitted by
Shakila Alivitsa
Advice from a young married Kenya...

I was just going to get water in the office kitchen and thought a simple hi was fine until I ended up in an hour long conversation with someone. Read more...

Submitted by
Shakila Alivitsa
Helping you find the type of man ...

To put it simply, you can’t go looking for fish in a meat market; you have to go to a fish market. Read more...