Dolphins often display a playful attitude which makes them popular in human culture. They can be seen jumping out of the water, riding waves, play fighting and occasionally interacting with humans swimming in the water.

Hockey pucks were originally made from frozen cow dung.

After the Krakatoa volcano eruption in 1883 in Indonesia, many people reported that, because of the dust, the sunset appeared green and the moon blue. The moon was said to appear blue for almost two years.

AMAZING FACTS