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For a bodyweight around 70 kg (155 lb.), the lethal dose of arsenic would be closer to a gram than 100 mg. Current Queue | Current Queue for Medicine | Medicine archives Try the links in the MadSci Library for more information on Medicine.
1 Tiny poison dart frogs may only be one inch (2.5 centimeters) long, but they pack a powerful punchâof poison. 2  Weighing less than an ounce (28 grams), these frogs are considered one of Earth's most toxic, or poisonous, species. 3  For example, the golden poison dart frog has enough poison to kill 20,000 mice. Like all frogs, poison dart frogs are amphibians, a group of animals that includes toads and salamanders. 2  Poison dart frogs eat insects, including flies, crickets, ants, termites, and beetles. 3  A group of frogs is sometimes called an army.