Killer with a smile

Doug Perrine had a close encounter with the elusive Greenland sharks when they ventured into the warmer waters of the St Lawrence River in North America. The sharks usually eat large seals but have even been known to polish off polar bears and reindeer. But 59-year-old Mr Perrine, from Kailua Kona, Hawaii, was brave enough to swim to just a metre away from the giants to get his shots.