The belly button is a constant reminder of how we came into the world.
The umbilical cord drops off a baby's belly button after birth. What happens on the inside is far more fascinating.
Your gadgets might slow down if they’re bloated with apps.
There are a few reasons why smartphones, tablets and PCs start to seem less snappy over time.
Where do chickens look when they’re scratching for food?
Chicken eyes are stranger than you think: they can look up and down at the same time.
Even if you’re not sick, your nose runs when it’s cold. Why?
A reader wants to know why our noses run just because it's cold.
Flu seems to be more deadly than colds, here’s why.
Why is it the flu virus is so deadly compared to the common cold virus?