Most people blink about every 6 seconds.

Owls are able to see their prey at a distance of over 50 metres away, in near darkness.

An ostrich's eyes are two inches across and each of them weighs more than it's brain!

A chameleon's eyes can look in opposite directions at the same time.

Newborn babies see the world upside-down. This is because it takes a little while before the baby's brain can understand how to turn what it sees the other way around.

Did you know that about one in every twelve males is colour blind?

An elephant can hear certain sounds from more than a mile away!

Did you know that birds have three eyelids to protect their eyes? One of them is like a human eyelid, a second eyelid closes when they are asleep, and a third is for cleaning the eye and keeping it moist!

Each time you blink you shut your eyes for an average of 0.3 seconds. Did you know that on average your eyes are closed for something like 30 minutes everyday just through blinking?