When Black Jack Ketchum was hung back in 1901 in Clayton New Mexico, the noose actually ended up taking his head off. The head had to be sewn back on so Black Jack could be buried properly.

The largest land based mammals on Earth are elephants.

Around three quarters of the increase in CO2 levels from human activity over the last 20 years is from the burning of fossil fuels. The rest is made up largely of land use changes such as deforestation.

AMAZING FACTS