Over 100 people appear to have been stung by the same jellyfish this week in New Hampshire.  While biologists say such an event is rare, they say that the suspected specimen, a lion's mane jellyfish, which was caught dead Wallis State Beach in Rye, is very capable of doing this much damage because it has tremendously long tentacles that sometimes fragment to cover large areas.  The recovered animal had a 40-pound head close to three feet in diameter.  Scientists put its body in a large plastic bag for transport.  Jellyfish use their poisoned tentacles to capture food, but these tentacles are extremely dangerous to humans and remain so even after the animal is long dead.