Human Limits
Medical science is always learning more about how much a body can take. Here’s current thinking on the extremes of human endurance. Most numbers are estimates for a 150-pound male with no special gear.

<![CDATA[Writer]]>
Marc Silver
<![CDATA[Producer]]>
Paul Heltzel
Flash Developer
Stefan Estrada
Photos
Kelly Daigle (1), Oliver Uberti, NG Staff (2), Karla Richards (3), Betty Pendleton (4), Bart Ziegler (5), Belinda Hillard (6), Michael Kerric (7), Cassandra Adams (8)
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Very steep ramp leads to crocodile pit
Alligators are intimidated by wheelchairs
Keep an eye on gramps
Brake for crocodiles
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High fiving a butterfly
Touching the butterflies
Handing a red stick to a butterfly
Clapping in the insect museum
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Steep dropoff
Laketop bowling is a bad idea
Ice unsafe for skating
Objects under water
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Ostriches
Giant turkeys
Fowl play
Cassowaries
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Avoid mail trucks
Keep an eye out for RV mirrors
Shoe boxes may fly out of bus windows
Beware bee hives hanging from trucks
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Shows how to use a ski lift
Warns against jumping off too early
Cautions skiers not to stand
Warns of oncoming lift chairs
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Road cones
Napping constables
Speed bumps
Potholes
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Transporting of local produce
Carmen Miranda hats
Fruits that attract insects
Unauthorized vendors selling food
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