http://192.168.2.6/english/杀人蜂.rm

Costarica(哥斯达黎加), 1986.
30 years after Doctor Cur's fateful(致命的) African trip, graduate students from the University of Miami are on a field-trip(学生实地考察) exploring caves.
Moving ahead of the group, 24-year-old Insaint Oi climbs into a deep crevasse. He's not alone. As he sweeps his flash-light around the interior of the cave, he startles a huge hive of killer bees. And these guys don't like surprises. They quickly retaliate.
Stingers pierce(刺穿) his flesh, injecting venom into his blood stream. As the bees try to fly away, their stingers are ripped from their abdomen.
Defending the hive means certain death. But even without the bee, the stinger keeps pumping venom for as long as a minute. Insient Oi quickly slides into a life-threatening condition known as anaphylactic shock(过敏性休克).
Like all victims, just how quickly depends on the dose of venom and his own sensitivity. Blood pressure plummets to a dangerously low level, his airways constrict. Insaint Oi's heart rate slows dramatically. In most cases, a shot of adrenalin will jump-start the heart, elevating his blood pressure, saving his life.

But in an extreme case like this one, there is simply too much toxin for his immune system to handle. Tissue and body functions break down. His kidneys fail.

Insient Oi has no where to run, each sting sending out a chemical signal to the rest of the hive to keep up the assault.

The young student suffers cardiac-arrest and dies. He was stung over 8 thousand times, nearly 8 times the number of stings required to kill a man his size. Tragedies like this have earned these creatures the nickname---- Killer-Bees.
Despite its fearsome reputation, the killer bee is just a honeybee(一个单词), a hard-working honeybee that produces some of the sweetest nectar in the world,but a honeybee that will sting its victim 10 times more frequently than its more docile(顺服的,听话的) cousin, and it will defend an area nearly 3 times as large. So just how do you tell these bees apart? It turns out you can't.They look almost exactly the same. Even the sting of the Africanized bee is virtually identical to an ordinary bee. It's just the number of Killer-Bees who join the fight that makes their attack so dangerous.