A couple's visit to the zoo becomes an eyewitness account of horror when a disturbed woman dives into the polar bear habitat. A cliff jump into a water hole ends in disaster and a charging buck rams straight into a cyclist -- horns to head.
A man zip lines over the Grand Falls but gets stuck in the middle.
Ready for a romantic boat ride, a couple runs for their lives ...
Driving in Yellowstone, a couple finds themselves in the ...
A hartebeest knocks a cyclist off his bike at 35 mph in an ...
After a crash, an explosion reduces a hot air balloon to rubble.
An 11-year-old boy falls 30 feet and is sinking with every breath.