Some sharks remain on the move for their entire lives. This forces water over their gills, delivering oxygen to the blood stream. If the shark stops moving then it will suffocate and die.

Blueberries have more antioxidents than any other fruit or vegetables.

The largest volcano known is on Mars: Olympus Mons, 370 miles wide and 79,000 feet high, is almost three times higher than Mount Everest.

AMAZING FACTS