Giraffes have the shortest sleep requirements of any mammal. They are also known to have

Due to a change in atmospheric pressure, our ears feel a certain discomfort at higher

When the moon revolves around the Earth, it spends half the time on the same

Colour is actually a component of light.

When a beehive is destroyed but the queen bee is still alive, the surviving worker

The main purpose of a hinge joint in humans is to allow free movement throughout

Water in waterfalls is said to be rich in nutrients and fish regularly swim over

Female mosquitoes rely on human and animal blood to provide themselves with protein so that

Re-entering the Earth’s atmosphere is the most dangerous time for a space shuttle.

3D printing is a method of manufacturing everything from shoes and jewellery to aerospace parts