Horrible but True
Natural World
Dangerous Waters
Hunters and Hunted
Weird Plants
Prehistoric Life
Natural Disasters
History
Exploration
Unusual Events
Deadly Frogs
1/100,000th of a gram of skin-gland secretion of the arrow-poison frog can kill a human.
An arrow-poison frog
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Book:
Horrible but True
Section:
Natural World
Chapter:
Hunters and Hunted