A human life is worth $13.7 million - according to the US Department of Transportation, which uses this 'statistical value of life' when weighing the costs and benefits of safety regulations.

The reason we feel groggy when we wake up is that blood flow first reaches the 'primitive brain centres.' It takes 15 minutes or more for blood to return to the areas responsible for deeper thinking.

Some species of spiders keep frogs as 'pets,' offering them shelter and protection. In return, the frogs eat insects in the burrow that would otherwise prey on the spider’s eggs.

Tomatoes, potatoes, peppers, and eggplants all naturally contain nicotine.

In Major League Baseball, pitches are so fast that the eye can't track the ball. However, the brain relies on specialized cells to calculate its trajectory, allowing the batter to make contact.

Peeing appears to be contagious among chimpanzees, hinting at deep evolutionary roots for the social behaviour observed in humans urinating together.

Robbie Williams' 2006 album Rudebox underperformed so badly that one million unsold copies were sold to a Chinese company to be recycled into road paving material.